Aikman, J. M., and R. F. Thorne. 1956. The Cayler Prairie: an ecological and taxonomic study of a northwest Iowa prairie. Proc. Iowa Acad. Sci. 63: 177–200. ![Find in a library](images/findit.jpg)
Arthur, J. C. 1876. Contributions to the flora of Iowa: a catalogue of the phanerogamous plants. Charles City, Iowa, Intelligencer. ![Find in a library](images/findit.jpg)
Arthur, J. C. 1877. Contributions to the flora of Iowa, No. 2. Proc. Davenport Acad. Nat. Sci. 2: 126. ![Find in a library](images/findit.jpg)
Arthur, J. C. 1878. Contributions to the flora of Iowa, No. 3. Proc. Davenport Acad. Nat. Sci. 2: 258–261. ![Find in a library](images/findit.jpg)
Arthur, J. C. 1882. Contributions to the flora of Iowa, No. 4. Proc. Davenport Acad. Nat. Sci. 3: 169–172. ![Find in a library](images/findit.jpg)
Arthur, J. C. 1884a. Contributions to the flora of Iowa, No. 5. Proc. Davenport Acad. Nat. Sci. 4: 27–30. ![Find in a library](images/findit.jpg)
Arthur, J. C. 1884b. Contributions to the flora of Iowa, No. 6. Proc. Davenport Acad. Nat. Sci. 4: 64–75. ![Find in a library](images/findit.jpg)
Baker, R. G., C. A. Chumbley, P. M. Witinok, and H. K. Kim. 1990. Holocene vegetational changes in eastern Iowa. J. Iowa Acad. Sci. 97: 167–177. ![Find in a library](images/findit.jpg)
Baker, R. G., D. G. Horton, H. K. Kim, A. E. Sullivan, D. M. Roosa, P. M. Witinok, and W. P. Pusateri. 1987. Late Holocene paleoecology of southeastern Iowa: development of riparian vegetation at Nichols Marsh. Proc. Iowa Acad. Sci. 92: 51–70. ![Find in a library](images/findit.jpg)
Baker, R. G., L. J. Maher, C. A. Chumbley, and K. L. Van Zant. 1992. Patterns of Holocene environmental changes in the midwestern United States. Quaternary Res. 37: 379–389. ![Find in a library](images/findit.jpg)
Baker, R. G., and K. L. Van Zant. 1978. The history of prairie in northwest Iowa: the pollen and macrofossil record. Pp. 8–11 in D. C. Glenn-Lewin and R. Q. Landers, eds., Proc. Fifth Midwest Prairie Conference, Iowa State Univ. Extension Serv., Ames. ![Find in a library](images/findit.jpg)
Beal, E. O., and P. H. Monson. 1954. Marsh and aquatic angiosperms of Iowa. Univ. Iowa Studies Nat. Hist. 19(5): 1–95. ![Find in a library](images/findit.jpg)
Beal, E. O., J. W. Wooten, and R. B. Kaul. 1982. Review of the Sagittaria engelmannia complex with environmental correlations. Syst. Bot. 7: 417–432. ![Find in a library](images/findit.jpg)
Bessey, C. E. 1871. Contributions to the flora of Iowa. Iowa Agric. Coll. 4th Bienn. Rept., pp. 90–127. ![Find in a library](images/findit.jpg)
Bettis, E. A., J. C. Prior, G. R. Hallberg, and R. L. Handy. 1986. Geology of the Loess Hills region. Proc. Iowa Acad. Sci. 93: 78–85. ![Find in a library](images/findit.jpg)
Bishop, R. A. 1981. Iowa's wetlands. Proc. Iowa Acad. Sci. 88: 11–16. ![Find in a library](images/findit.jpg)
Boot, D. H. 1901. Comparison of field and forest floras of Monona County, Iowa. Botanical Laboratory, Univ. of Iowa, Iowa City. ![Find in a library](images/findit.jpg)
Boot, D. H. 1917. Plant studies in Lyon County, Iowa. Proc. Iowa Acad. Sci. 60: 82–85. ![Find in a library](images/findit.jpg)
Boufford, D. E. 1982. The systematics and evolution of Circaea (Onagraceae). Ann. Missouri Bot. Gard. 69: 804–994. ![Find in a library](images/findit.jpg)
Braun, E. L. 1950. Deciduous forests of eastern North America. Hafner Press, New York. ![Find in a library](images/findit.jpg)
Brotherson, J. D. 1969. Species composition, distribution, and phytosociology of Kalsow Prairie, a mesic tallgrass prairie in Iowa. Ph.D. dissertation, Iowa State Univ., Ames. ![Find in a library](images/findit.jpg)
Brown, M. E., and R. G. Brown. 1939. Preliminary list of the plants of the sand mounds of Muscatine and Louisa counties. Proc. Iowa Acad. Sci. 46: 167–178. ![Find in a library](images/findit.jpg)
Cahayla-Wynne, R., and D. C. Glenn-Lewin. 1978. The forest vegetation of the Driftless Area, northeast Iowa. Am. Midi. Nat. 100: 307–319. ![Find in a library](images/findit.jpg)
Carroll, S., R. L. Miller, and P. D. Whitson. 1984. Status of four orchid species at Silver Lake Fen complex. Proc. Iowa Acad. Sci. 91: 132–139. ![Find in a library](images/findit.jpg)
Carter, J. L. 1960. The flora of northwestern Iowa. Ph.D. dissertation, Univ. of Iowa, Iowa City. ![Find in a library](images/findit.jpg)
Carter, J. L. 1963. The flora of Cherokee County. Proc. Iowa Acad. Sci. 69: 60–70. ![Find in a library](images/findit.jpg)
Christiansen, P. A. 1992. Distribution maps of Iowa prairie plants. Iowa Dept. of Transportation, Ames. ![Find in a library](images/findit.jpg)
Clambey, G. K., and R. Q. Landers. 1978. A survey of wetland vegetation in north-central Iowa. Pp. 32–35 in D. C. Glenn-Lewin and R. Q. Landers, eds., Proc. Fifth Midwest Prairie Conference, Iowa State Univ. Extension Serv., Ames. ![Find in a library](images/findit.jpg)
Clayton, W. D. 1968. The correct name of the common reed. Taxon 17: 168–169. ![Find in a library](images/findit.jpg)
Coffey, V. J. The Scrophulariaceae of Iowa. M.S. thesis, Univ. of Iowa, Iowa City. ![Find in a library](images/findit.jpg)
Coleman, V. W. 1950. The Liliaceae of Iowa. M.S. thesis, Univ. of Iowa, Iowa City. ![Find in a library](images/findit.jpg)
Conard, H. S. 1938. The fir forests of Iowa. Proc. Iowa Acad. Sci. 45: 69–72. ![Find in a library](images/findit.jpg)
Conard, H. S. 1951. Plants of Iowa. 7th ed. Iowa City. ![Find in a library](images/findit.jpg)
Conard, H. S. 1952. The vegetation of Iowa. Univ. Iowa Studies Nat. Hist. 19(4): 1–166. ![Find in a library](images/findit.jpg)
Cooperrider, T. S. 1959. The ferns and other pteridophytes of Iowa. Univ. Iowa Studies Nat. Hist. 20(1): 1–66. ![Find in a library](images/findit.jpg)
Cooperrider, T. S. 1962. The vascular plants of Clinton, Jackson, and Jones counties, Iowa. Univ. Iowa Studies Nat. Hist. 20(5): 1–80. ![Find in a library](images/findit.jpg)
Cratty, R. I. 1933. The Iowa flora: an annotated list of the ferns, fern allies and the native and introduced flowering plants of the state represented in the Iowa State College herbarium. Iowa State Coll. J. Sci. 7: 177–252. ![Find in a library](images/findit.jpg)
Crawford, D. J. 1970. The Umbelliferae of Iowa. Univ. Iowa Studies Nat. Hist. 21(4): 1–36. ![Find in a library](images/findit.jpg)
Crins, W. J., and P. W. Ball. 1983. The taxonomy of the Carex pensylvanica complex (Cyperaceae) in North America. Can. J. Bot. 61: 1692–1717. ![Find in a library](images/findit.jpg)
Crist, A. M., and D. C. Glenn-Lewin. 1978. The structure of community and environmental gradients in a northern Iowa prairie. Pp. 57–64 in D. C. Glenn-Lewin and R. Q. Landers, eds., Proc. Fifth Midwest Prairie Conference, Iowa State Univ. Extension Serv., Ames. ![Find in a library](images/findit.jpg)
Crum, G. H., and J. I. Knapp. 1976. The Elatinaceae in Iowa. Proc. Iowa Acad. Sci. 83: 63. ![Find in a library](images/findit.jpg)
Curtis, J. T. 1959. The vegetation of Wisconsin. Univ. of Wisconsin Press, Madison. ![Find in a library](images/findit.jpg)
D'arcy, W. G. 1978. Names in Agalinis for some plants that were called Gerardia and Virgularia (Scrophulariaceae). Ann. Missouri Bot. Gard. 65: 769–771. ![Find in a library](images/findit.jpg)
Davidson, R. A. 1959. The vascular flora of southeastern Iowa. Univ. Iowa Studies Nat. Hist. 20(2): 1–102. ![Find in a library](images/findit.jpg)
Davidson, R. A. 1960. Plant communities of southeastern Iowa. Proc. Iowa Acad. Sci. 67: 162–173. ![Find in a library](images/findit.jpg)
Davis, R. J. 1966. The North American perennial species of Claytonia. Brittonia 18: 285–303. ![Find in a library](images/findit.jpg)
Deevy, E. S., and R. F. Flint. 1957. Postglacial hypsithermal interval. Science 125: 182–184. ![Find in a library](images/findit.jpg)
Dick-Peddie, W. A. 1955. Presettlement forest types in Iowa. Ph.D. dissertation, Iowa State Univ., Ames. ![Find in a library](images/findit.jpg)
Dietrich, W., and P. H. Raven. 1976. An earlier name for Oenothera strigosa (Onagraceae). Ann. Missouri Bot. Gard. 63: 382–383. ![Find in a library](images/findit.jpg)
Dorn, R. D. 1988. Chenopodium simplex, an earlier name for C. gigantospermum (Chenopodiaceae). Madrono 35: 162. ![Find in a library](images/findit.jpg)
Dorr, L. J. 1990. A revision of the North America genus Callirhoe (Malvaceae). Mem. New York Bot. Gard. 56: 1–74. ![Find in a library](images/findit.jpg)
Duritsa, M. F. 1983. A natural areas inventory of Black Hawk County, Iowa. M.S. thesis, Univ. of Northern Iowa, Cedar Falls. ![Find in a library](images/findit.jpg)
Eilers, L. J. 1963. The vegetation of the glacial border during the Wisconsin maximum. Proc. Iowa Acad. Sci. 70: 60–64. ![Find in a library](images/findit.jpg)
Eilers, L. J. 1965. The postglacial phytogeography of the Iowan Lobe. Proc. Iowa Acad. Sci. 72: 84–98. ![Find in a library](images/findit.jpg)
Eilers, L. J. 1971. The vascular flora of the Iowan area. Univ. Iowa Studies Nat. Hist. 21(5): 1– 137. ![Find in a library](images/findit.jpg)
Eilers, L. J. 1974. A flora of Brush Creek Canyon State Preserve. Proc. Iowa Acad. Sci. 81: 150–157. ![Find in a library](images/findit.jpg)
Eilers, L. J. 1975. History of studies on the Iowa flora. Proc. Iowa Acad. Sci. 82: 59–64. ![Find in a library](images/findit.jpg)
Eilers, L. J. 1979. BIOBANK, a computerized data storage and processing system for the vascular flora of Iowa. Proc. Iowa Acad. Sci. 86: 15–18. ![Find in a library](images/findit.jpg)
Espenshade, E. B., ed. 1964. Goode's world atlas. 12th ed. Rand McNally Co., Chicago. ![Find in a library](images/findit.jpg)
Farrar, D. R. 1985. Pteridophytes of Iowa's Loess Hills: adaptations to dry habitats. Proc. Iowa Acad. Sci. 92: 196–198. ![Find in a library](images/findit.jpg)
Fay, M. J. 1951. The flora of Cedar County, Iowa. Proc. Iowa Acad. Sci. 58: 107–131. ![Find in a library](images/findit.jpg)
Fay, M. J. 1953. The flora of southwestern Iowa. Ph.D. dissertation, Univ. of Iowa, Iowa City. ![Find in a library](images/findit.jpg)
Fernald, M. L. 1953. Gray's manual of botany. 8th ed. American Book Co., New York. ![Find in a library](images/findit.jpg)
Fitzpatrick, T. J., and M. F. L. Fitzpatrick. 1897. The flora of southern Iowa. Proc. Iowa Acad. Sci. 5: 134–173. ![Find in a library](images/findit.jpg)
Freckmann, R. W. 1978. New combinations in Dichanthelium (Poaceae). Phytologia 39: 268–270. ![Find in a library](images/findit.jpg)
Freese, E. L., and W. J. Piatt. 1991. Vascular flora of Arend's Kettle, Freda Haffner Kettlehole State Preserve, Dickinson County, Iowa. J. Iowa Acad. Sci. 98: 102–107. ![Find in a library](images/findit.jpg)
Frest, T. J. 1981. Iowa Pleistocene snail. Final report on project SE-1–4 submitted to the U.S. Fish and Wildlife Service and Iowa Dept. of Natural Resources. ![Find in a library](images/findit.jpg)
Fults, J. L. 1934. A botanical survey of Lee County, Iowa. Iowa State Coll. J. Sci. 8: 251–293. ![Find in a library](images/findit.jpg)
Gabel, M. 1984. A biosystematic study of the genus Elymus (Gramineae: Triticae) in Iowa. Proc. Iowa Acad. Sci. 79: 140–146. ![Find in a library](images/findit.jpg)
Gilly, C. L. 1946. The Cyperaceae of Iowa. Iowa State Coll. J. Sci. 21: 55–151. ![Find in a library](images/findit.jpg)
Gilly, C. L. 1947. The flora of Iowa: a progress report based on past contributions. Proc. Iowa Acad. Sci. 54: 99–106. ![Find in a library](images/findit.jpg)
Gilly, C. L., and M. E. MacDonald. 1936. Rare and unusual plants from southeastern Iowa. Proc. Iowa Acad. Sci. 43: 143–149. ![Find in a library](images/findit.jpg)
Gilly, C. L., and M. E. MacDonald. 1947. A preliminary report on the flora of southeastern Iowa, Part 1. Proc. Iowa Acad. Sci. 54: 107–126. ![Find in a library](images/findit.jpg)
Gilly, C. L., and M. E. MacDonald. 1948. Preliminary report on the flora of southeastern Iowa, Part 2. Proc. Iowa Acad. Sci. 55: 115–133. ![Find in a library](images/findit.jpg)
Gleason, H. A., and A. Cronquist. 1963. Manual of vascular plants of northeastern United States and adjacent Canada. D. van Nostrand Co., New York. ![Find in a library](images/findit.jpg)
Glenn-Lewin, D. C. 1976. The vegetation of Stinson Prairie, Kossuth County, Iowa. Proc. Iowa Acad. Sci. 83: 88–93. ![Find in a library](images/findit.jpg)
Glenn-Lewin, D. C, R. H. Laushman, and P. D. Whitson. 1984. The vegetation of the Paleozoic Plateau, northeastern Iowa. Proc. Iowa Acad. Sci. 91: 22–27. ![Find in a library](images/findit.jpg)
Goodman, G. J. 1939. Plants new to Iowa. Proc. Iowa Acad. Sci. 46: 105–106. ![Find in a library](images/findit.jpg)
Goodman, G. J. 1942. Notes on Iowa plants. Proc. Iowa Acad. Sci. 49: 207–209. ![Find in a library](images/findit.jpg)
Gould, F. W. 1974. Nomenclatural changes in the Poaceae. Brittonia 26: 59–60. ![Find in a library](images/findit.jpg)
Gould, F. W., and C. A. Clark. 1978. Dichanthelium (Poaceae) in the United States and Canada. Ann. Missouri Bot. Gard. 65: 1088–1132. ![Find in a library](images/findit.jpg)
Graham, S. A. 1979. The origin of Ammania X coccinea Rottboell. Taxon 28: 169–178. ![Find in a library](images/findit.jpg)
Graham, S. A. 1985. A revision of Ammania (Lythraceae) in the western hemisphere. J. Arnold Arbor. 66: 395–420. ![Find in a library](images/findit.jpg)
Grant, M. L. 1950. Dickinson County flora. Proc. Iowa Acad. Sci. 57: 91–129. ![Find in a library](images/findit.jpg)
Grant, M. L., and R. F. Thorne. 1955. Discovery and description of a sphagnum bog in Iowa, with notes on the distribution of bog plants in the state. Proc. Iowa Acad. Sci. 62: 197–210. ![Find in a library](images/findit.jpg)
Great Plains Flora Association. 1977. Atlas of the flora of the Great Plains. Univ. Press of Kansas, Lawrence. ![Find in a library](images/findit.jpg)
Great Plains Flora Association. 1986. Flora of the Great Plains. Univ. Press of Kansas, Lawrence. ![Find in a library](images/findit.jpg)
Greene, W., ed. 1907. Plants of Iowa: a preliminary list of the native and introduced plants of the state not under cultivation. Bull. State Hort. Soc: 1–264. ![Find in a library](images/findit.jpg)
Guldner, L. F. 1960. The vascular plants of Scott and Muscatine counties. Davenport Publ. Mus. Publs. in Botany, No. 1. ![Find in a library](images/findit.jpg)
Hallberg, G. R., E. A. Bettis, and J. C. Prior. 1984. Geologic overview of the Paleozoic Plateau region of northeastern Iowa. Proc. Iowa Acad. Sci. 91: 12–15. ![Find in a library](images/findit.jpg)
Hartley, T. H. 1966. The flora of the Driftless Area. Univ. Iowa Studies Nat. Hist. 21(1): 1–174. ![Find in a library](images/findit.jpg)
Hayden, A. 1940. A supplement to the catalogue of Iowa plants in the Iowa State College herbarium. Iowa State Coll. J. Sci. 14: 199–213. ![Find in a library](images/findit.jpg)
Hayden, A. 1943. A botanical survey in the Iowa lake region of Clay and Palo Alto counties. Iowa State Coll. J. Sci. 17: 277–415. ![Find in a library](images/findit.jpg)
Hayden, A. 1945. A second supplement to the catalogue of Iowa plants in the Iowa State College herbarium. Iowa State Coll. J. Sci. 19: 111–132. ![Find in a library](images/findit.jpg)
Hayden, A. 1946. A progress report on the preservation of prairie. Proc. Iowa Acad. Sci. 53: 45–82. ![Find in a library](images/findit.jpg)
Hinton, W. F. 1976. The systematics of Physalis pumila. Syst. Bot. 1: 188–193. ![Find in a library](images/findit.jpg)
Hippler, M. I., Sr. 1951. An annotated bibliography of the taxonomic and ecological literature of the vascular plants of Iowa. M.S. thesis, Univ. of Iowa, Iowa City. ![Find in a library](images/findit.jpg)
Hoch, P. C, and P. H. Raven. 1977. New combinations in Epilobium (Onagraceae). Ann. Missouri Bot. Gard. 64: 136. ![Find in a library](images/findit.jpg)
Holte, K. E., and R. F. Thorne. 1962. Discovery of a calcareous fen complex in northwest Iowa. Proc. Iowa Acad. Sci. 69: 54–60. ![Find in a library](images/findit.jpg)
Isely, D. 1962. Leguminosae of the north-central states, IV: Psoraleae. Iowa State J. Sci. 37: 103–162. ![Find in a library](images/findit.jpg)
Isely, D. 1973. Leguminosae of the United States, I: subfamily Mimosoideae. Mem. New York Bot. Gard. 25(1): 1–152. ![Find in a library](images/findit.jpg)
Isely, D. 1975. Leguminosae of the United States, II: subfamily Caesalpinioideae. Mem. New York Bot. Gard. 25(2): 1–128. ![Find in a library](images/findit.jpg)
Isely, D. 1984. Astragalus L. (Leguminosae: Papilionoideae) II: species summary A-E. Iowa State J. Res. 59: 97–216. ![Find in a library](images/findit.jpg)
Isely, D. 1985. Leguminosae of the United States, Astragalus L., III: species summary F-M. Iowa State J. Res. 60: 179–322. ![Find in a library](images/findit.jpg)
Isely, D. 1990. Vascular flora of the southeastern United States, vol. 3, pt. 3, Leguminosae (Fabaceae). Univ. of North Carolina Press, Chapel Hill. ![Find in a library](images/findit.jpg)
Johnson-Groh, C. L., and D. R. Farrar. 1985. Flora and phytogeographical history of Ledges State Park, Boone County, Iowa. Proc. Iowa Acad. Sci. 92: 137–144. ![Find in a library](images/findit.jpg)
Johnson-Groh, C. L., D. Q. Lewis, and J. F. Shearer. 1987. Vegetation communities and flora of Dolliver State Park, Webster County, Iowa. Proc. Iowa Acad. Sci. 94: 84–88. ![Find in a library](images/findit.jpg)
Jones, A. G. 1984. Nomenclatural notes on Aster (Asteraceae), II: new combinations and some transfers. Phytologia 55: 373–388. ![Find in a library](images/findit.jpg)
Kartesz, J. T., and K. N. Gandhi. 1989. Nomenclatural notes for the North American flora, I. Phytologia 67: 461–467. ![Find in a library](images/findit.jpg)
Kartesz, J. T., and K. N. Gandhi. 1990. Nomenclatural notes for the North American flora, II. Phytologia 68: 421–427. ![Find in a library](images/findit.jpg)
Kartesz, J. T., and R. Kartesz. 1980. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. Univ. of North Carolina Press, Chapel Hill. ![Find in a library](images/findit.jpg)
Kellogg, G. E. 1946. The asters of Iowa. Proc. Iowa Acad. Sci. 53: 153–166. ![Find in a library](images/findit.jpg)
Knapp, J. L. 1983. The erosional cycle of upland wetlands created by eolian sands. M.S. thesis, Univ. of Northern Iowa, Cedar Falls. ![Find in a library](images/findit.jpg)
Koch, D. 1969. The Sioux Quartzite formation in Gitchie Manitou State Preserve. Development Series Report 8. State Preserves Advisory Board, Iowa City. ![Find in a library](images/findit.jpg)
Kwang, Yao-Wen. 1951. The Polemoniales of Iowa (Convolvulaceae to Verbenaceae). M.S. thesis, Univ. of Iowa, Iowa City. ![Find in a library](images/findit.jpg)
Lammers, T. G. 1980. The vascular flora of Starr's Cave State Preserve. Proc. Iowa Acad. Sci. 87: 148–158. ![Find in a library](images/findit.jpg)
Lammers, T. G. 1983a. The vascular flora of Des Moines County, Iowa. Proc. Iowa Acad. Sci. 90: 55–71. ![Find in a library](images/findit.jpg)
Lammers, T. G. 1983b. The vascular flora of Roggman Boreal Slopes State Preserve, Clayton County, Iowa. Proc. Iowa Acad. Sci. 90: 107–111. ![Find in a library](images/findit.jpg)
Lammers, T. G., and A. G. Van Der Valk. 1977. A checklist of the aquatic and wetland vascular plants of Iowa, I: ferns, fern allies, and dicotyledons. Proc. Iowa Acad. Sci. 84: 41–88. ![Find in a library](images/findit.jpg)
Lammers, T. G., and A. G. Van Der Valk. 1978. A checklist of the aquatic and wetland vascular plants of Iowa, II: monocotyledons. Proc. Iowa Acad. Sci. 85: 121–163. ![Find in a library](images/findit.jpg)
Landolt, E. 1960. Biosystematics of the family of duckweeds (Lemnaceae), vol. 1. Veroff. Geobot. Inst. Eth, Stiftung Rubel. Zurich 70: 1–247. ![Find in a library](images/findit.jpg)
Lehmann, J. W. 1983. The vascular flora of Dubuque County, Iowa. M.S. thesis, Univ. of Northern Iowa, Cedar Falls. ![Find in a library](images/findit.jpg)
Lellinger, D. B. 1985. A field manual of the ferns and fern allies of the United States and Canada. Smithsonian Institution, Washington, D.C. ![Find in a library](images/findit.jpg)
Lewis, W. H. 1961. Merger of the North American Houstonia and Oldenlandia under Hedyotis. Rhodora 63: 216–223. ![Find in a library](images/findit.jpg)
Loomis, W. E., and A. L. McComb. 1943. Recent advances in the forest in Iowa. Proc. Iowa Acad. Sci. 51: 217–224. ![Find in a library](images/findit.jpg)
McComb, A. L., and W. E. Loomis. 1944. Subclimax prairie. Bull. Torr. Bot. Club 71: 46–76. ![Find in a library](images/findit.jpg)
Mohlenbrock, R. H. 1986. Guide to the vascular flora of Illinois. Southern Illinois Univ. Press, Carbondale. ![Find in a library](images/findit.jpg)
Monson, P. H. 1959. Spermatophytes of the Des Moines Lobe in Iowa. Ph.D. dissertation, Iowa State Univ., Ames. ![Find in a library](images/findit.jpg)
Morrill, J. B. 1953. Prairie flora of the Missouri River bluffs of western Iowa. M.S. thesis, Iowa State Univ., Ames. ![Find in a library](images/findit.jpg)
Mutel, C. F. 1991. Fragile giants: a natural history of the Loess Hills. Univ. of Iowa Press, Iowa City. ![Find in a library](images/findit.jpg)
Nekola, J. C. 1990. Rare Iowa plant notes from the R. V. Drexler herbarium. J. Iowa Acad. Sci. 97: 55–73. ![Find in a library](images/findit.jpg)
Nicholson, D., and N. H. Russell. 1955. The genus Asclepias in Iowa. Proc. Iowa Acad. Sci. 62: 211–215. ![Find in a library](images/findit.jpg)
Niemann, D. A. 1986. The distribution of orchids in Iowa. Proc. Iowa Acad. Sci. 93: 24–34. ![Find in a library](images/findit.jpg)
Niemeier, P. E., and W. A. Hubert. 1984. The aquatic vascular flora of Clear Lake, Cerro Gordo County, Iowa. Proc. Iowa Acad. Sci. 91: 57–66. ![Find in a library](images/findit.jpg)
Novacek, J. M. 1985. The Loess Hills of western Iowa: a problem in phytogeography. Proc. Iowa Acad. Sci. 92: 213–219. ![Find in a library](images/findit.jpg)
Novacek, J. M., D. M. Roosa, and W. P. Pusateri. 1985. The vegetation of the Loess Hills landform along the Missouri River. Proc. Iowa Acad. Sci. 92: 192–212. ![Find in a library](images/findit.jpg)
Ownbey, G. B., and T. Morley. 1991. Vascular plants of Minnesota, a checklist and atlas. Univ. of Minnesota Press, Minneapolis. ![Find in a library](images/findit.jpg)
Pammel, L. H. 1899. The forest flora of Hardin County, Iowa. Iowa Geol. Survey Ann. Rept. 10: 306–313. ![Find in a library](images/findit.jpg)
Pammel, L. H. 1924. The occurrence of Juniperus horizontalis in Floyd County near Rockford. Proc. Iowa Acad. Sci. 30: 297–300. ![Find in a library](images/findit.jpg)
Parry, C. C. 1852. Systematic catalogue of plants of Wisconsin and Minnesota, Art. V. Pp. 606–622 in D. D. Owen, Report of a geological survey of Wisconsin, Iowa, and Minnesota. Lippencott, Grambo & Co., Philadelphia. ![Find in a library](images/findit.jpg)
Pearson, J. A., and M. L. Leoschke. 1992. Floristic composition and conservation status of fens in Iowa. J. Iowa Acad. Sci. 99: 41–52. ![Find in a library](images/findit.jpg)
Peck, J. H. 1976. The pteridophyte flora of Iowa. Proc. Iowa Acad. Sci. 83: 143–160. ![Find in a library](images/findit.jpg)
Peck, J. H. 1980. Life history and reproductive biology of the ferns of Woodman Hollow, Webster County, Iowa. Ph.D. dissertation, Iowa State Univ., Ames. ![Find in a library](images/findit.jpg)
Peck, J. H. 1982. Ferns and fern allies of the Driftless Area of Illinois, Iowa, Minnesota, and Wisconsin. Milwaukee Publ. Mus. Contr. in Biol, and Geol. 53: 1–140. ![Find in a library](images/findit.jpg)
Peck, J. H. 1989. Additions to the Iowa pteridophyte flora, III. J. Iowa Acad. Sci. 96: 54–56. ![Find in a library](images/findit.jpg)
Peck, J. H., and W. R. Buck. 1978. The Selaginella apoda complex in Iowa. Am. Fern J. 68: 29. ![Find in a library](images/findit.jpg)
Peck, J. H., L. J. Eilers, and D. M. Roosa. 1978. The vascular plants of Fremont County, Iowa. Iowa Bird Life 48: 3–18. ![Find in a library](images/findit.jpg)
Peck, J. H., B. W. Haglan, L. J. Eilers, D. M. Roosa, and D. Vander Zee. 1984. Checklist of the vascular flora of Lyon and Sioux counties, Iowa. Proc. Iowa Acad. Sci. 91: 92–97. ![Find in a library](images/findit.jpg)
Peck, J. H., T. G. Lammers, B. W. Haglan, D. M. Roosa, and L. J. Eilers. 1981. A checklist of the vascular flora of Lee County, Iowa. Proc. Iowa Acad. Sci. 88: 159–171. ![Find in a library](images/findit.jpg)
Peck, J. H., J. C. Nekola, and D. R. Farrar. 1989. Five pteridophytes new to Iowa. Amer. Fern J. 79: 28–29. ![Find in a library](images/findit.jpg)
Peck, J. H., and D. M. Roosa. 1983. Bibliography of Iowa aquatic and wetland plant literature. Proc. Iowa Acad. Sci. 90: 72–77. ![Find in a library](images/findit.jpg)
Peck, J. H., D. M. Roosa, and L. J. Eilers. 1980. A checklist of the vascular flora of Allamakee County. Proc. Iowa Acad. Sci. 87: 62–75. ![Find in a library](images/findit.jpg)
Peck, J. H., and M. M. Smart. 1985. Bibliography to upper Mississippi River aquatic and wetland plant literature. Proc. Iowa Acad. Sci. 92: 78–84. ![Find in a library](images/findit.jpg)
Peck, M. 1904. The flowering plants of Hardin County. Proc. Iowa Acad. Sci. 12: 193–214. ![Find in a library](images/findit.jpg)
Phillips, M. N. 1977. Systematics of Saxifraga pensylvanica and a putative segregate species, S. forbesii (Saxifragaceae). M.S. thesis, Univ. of Wisconsin, Madison. ![Find in a library](images/findit.jpg)
Pike, Z. M. 1810. Sources of the Mississippi and the western Louisiana Territory. March of America Facsimile Series No. 57. University Microfilms, Ann Arbor. ![Find in a library](images/findit.jpg)
Plouffe, M. E. 1977. An autecological study of Betula papyrifera in the Iowa River greenbelt in Hardin County, Iowa, with notes on the vegetation. M.S. thesis, Iowa State Univ., Ames. ![Find in a library](images/findit.jpg)
Pohl, R. W. 1966. The grasses of Iowa. Iowa State J. Sci. 40: 341–573. ![Find in a library](images/findit.jpg)
Prior, J. C. 1991. Landforms of Iowa. Univ. of Iowa Press, Iowa City. ![Find in a library](images/findit.jpg)
Pusateri, W. P., D. M. Roosa, and D. R. Farrar. 1993. Habitat and distribution of plants special to Iowa's Driftless Area. J. Iowa Acad. Sci. 100: 29–53. ![Find in a library](images/findit.jpg)
Raven, P. H., W. Dietrich, and W. Stubbe. 1979. An outline of the systematics of Oenothera subsect. Euoenothera (Onagraceae). Syst. Bot. 4(3): 242–251. ![Find in a library](images/findit.jpg)
Raven, P. H., and D. P. Gregory. 1972. A revision of the genus Gaura (Onagraceae). Mem. Torr. Bot. Club 23: 1–96. ![Find in a library](images/findit.jpg)
Rickey, M. D. 1964. A floristic survey of Delaware County, Iowa. M.S. thesis, Univ. of Iowa, Iowa City. ![Find in a library](images/findit.jpg)
Roosa, D. M. 1981. Marsh vegetation dynamics at Goose Lake, Hamilton County, Iowa: the role of historical, cyclical, and annual events. Ph.D. dissertation, Iowa State Univ., Ames. ![Find in a library](images/findit.jpg)
Roosa, D. M., L. J. Eilers, and S. Zager. 1991. An annotated checklist of the vascular plant flora of Guthrie County, Iowa. J. Iowa Acad. Sci. 98(1): 14–30. ![Find in a library](images/findit.jpg)
Roosa, D. M., M. J. Leoschke, and L. J. Eilers. 1989. Distribution of Iowa's endangered and threatened vascular plants. Dept. of Nat. Resources, Des Moines. ![Find in a library](images/findit.jpg)
Roosa, D. M., and J. H. Peck. 1986. Annotated bibliography of Iowa prairie literature. Proc. Iowa Acad. Sci. 93: 54–69. ![Find in a library](images/findit.jpg)
Rosburg, T. R. 1992. A new record for falcate spurge in the midwest. Prairie Nat. 24(1): 41–42. ![Find in a library](images/findit.jpg)
Salsbury, N. E., and J. C. Knox. 1969. Glacial landforms of the Big Kettle locality, Dickinson County, Iowa. Development Series Report 6. State Preserves Advisory Board, Iowa City. ![Find in a library](images/findit.jpg)
Sanders, D. R. 1968. Vegetation of slope forests along the Des Moines River. Proc. Iowa Acad. Sci. 75: 78–84. ![Find in a library](images/findit.jpg)
Scholtes, W. H. 1955. Properties and classification of the paha-derived soils in northeastern Iowa. Iowa State Coll. J. Sci. 30: 163–209. ![Find in a library](images/findit.jpg)
Sears, P. 1942. Xerothermic theory. Bot. Rev. 8: 708–736. ![Find in a library](images/findit.jpg)
Sheviak, C. 1977. A new species of Spiranthes from the grasslands of central North America. Bot. Mus. Leafl. Harvard Univ. 23: 285–297. ![Find in a library](images/findit.jpg)
Sheviak, C, and M. L. Bowles. 1986. The prairie fringed orchids: a pollinator-isolated species pair. Rhodora 88: 267–290. ![Find in a library](images/findit.jpg)
Shimek, B. 1896. The flora of the Sioux Quartzite in Iowa. Proc. Iowa Acad. Sci. 4: 72–77. ![Find in a library](images/findit.jpg)
Shimek, B. 1899. The flora of Lyon County. Iowa Geol. Surv. Ann. Rept. 10: 157–184. Bull. Lab. Nat. Hist. Univ. Iowa 5(2): 145–170. ![Find in a library](images/findit.jpg)
Shimek, B. 1910. The geology of Harrison and Monona counties, Iowa. Iowa Geol. Surv. Ann. Rept. 20: 271–485. ![Find in a library](images/findit.jpg)
Shimek, B. 1915. Early Iowa locality records. Proc. Iowa Acad. Sci. 22: 105–119. ![Find in a library](images/findit.jpg)
Shimek, B. 1917. The sand flora of Iowa. Bull. Lab. Nat. Hist. Univ. Iowa 7(4): 6–24. ![Find in a library](images/findit.jpg)
Shimek, B. 1924. The prairie of the Mississippi River bluffs. Proc. Iowa Acad. Sci. 31: 205– 212. ![Find in a library](images/findit.jpg)
Shimek, B. 1948. (H. S. Conard, ed.). The plant geography of Iowa. Univ. Iowa Studies Nat. Hist. 19(4): 1–178. ![Find in a library](images/findit.jpg)
Smith, D. D. 1981. Iowa prairie: an endangered ecosystem. Proc. Iowa Acad. Sci. 88: 7–10. ![Find in a library](images/findit.jpg)
Smith, P. E., and R. V. Bovbjerg. 1958. Pilot Knob bog as a habitat. Proc. Iowa Acad. Sci. 65: 546–553. ![Find in a library](images/findit.jpg)
Spence, W. L. 1959. The Salicaceae of Iowa. M.S. thesis, Univ. of Iowa, Iowa City. ![Find in a library](images/findit.jpg)
State Planning Board. 1925. The Iowa twenty-five-year plan. Des Moines. ![Find in a library](images/findit.jpg)
Thompson, C. A., E. A. Bettis, and R. G. Baker. 1992. Geology of Iowa fens. J. Iowa Acad. Sci. 99: 53–59. ![Find in a library](images/findit.jpg)
Thomson, G. W., and H. G. Hertel. 1981. The forest resources of Iowa in 1980. Proc. Iowa Acad. Sci. 88: 2–6. ![Find in a library](images/findit.jpg)
Thorne, R. F. 1953. Notes on rare Iowa plants. Proc. Iowa Acad. Sci. 60: 260–274. ![Find in a library](images/findit.jpg)
Thorne, R. F. 1954. Present status of our knowledge of the vascular flora of Iowa. Proc. Iowa Acad. Sci. 61: 177–183. ![Find in a library](images/findit.jpg)
Thorne, R. F. 1955. Flora of Johnson County, Iowa. Proc. Iowa Acad. Sci. 62: 155–227. ![Find in a library](images/findit.jpg)
Thorne, R. F. 1956. Notes on rare Iowa plants, II. Proc. Iowa Acad. Sci. 63: 214–227. ![Find in a library](images/findit.jpg)
Thorne, R. F. 1964. Relict nature of the flora of White Pine Hollow Forest Preserve, Dubuque County, Iowa. Univ. Iowa Studies Nat. Hist. 20(2): 1–33. ![Find in a library](images/findit.jpg)
Tuttle, F. M. 1919. Flora of Mitchell County. Proc. Iowa Acad. Sci. 26: 269–299. ![Find in a library](images/findit.jpg)
Ugarte, E. 1987. The hill prairies of northeast Iowa: vegetation and dynamics. Ph.D. dissertation, Iowa State Univ., Ames. ![Find in a library](images/findit.jpg)
United States Department of Agriculture. 1941. Climate and man: yearbook of agriculture. U.S. Govt. Printing Office, Washington, D.C. ![Find in a library](images/findit.jpg)
United States Department of Agriculture. 1982a. National list of scientific plant names, vol. 1: list of plant names. U.S. Govt. Printing Office, Washington, D.C. ![Find in a library](images/findit.jpg)
United States Department of Agriculture. 1982b. National list of scientific plant names, vol. 2: synonymy. U.S. Govt. Printing Office, Washington, D.C. ![Find in a library](images/findit.jpg)
Van Bruggen, T. 1958. The flora of south-central Iowa. Ph.D. dissertation, Univ. of Iowa, Iowa City. ![Find in a library](images/findit.jpg)
Van Bruggen, T. 1985. The vascular plants of South Dakota. 2nd ed. Iowa State Univ. Press, Ames. ![Find in a library](images/findit.jpg)
Van Der Linden, P., and D. R. Farrar. 1984. Forest and shade trees of Iowa. Iowa State Univ. Press, Ames. ![Find in a library](images/findit.jpg)
Van Der Valk, A. G. 1975. Floristic composition and structure of fen communities in north-west Iowa. Proc. Iowa Acad. Sci. 82: 109–117. ![Find in a library](images/findit.jpg)
Vander Zee, D. 1979. The vascular flora of Gitchie Manitou State Preserve. Proc. Iowa Acad. Sci. 86: 66–75. ![Find in a library](images/findit.jpg)
Van Norman, K. 1987. The vascular flora of Black Hawk County, Iowa. M.S. thesis, Univ. of Northern Iowa, Cedar Falls. ![Find in a library](images/findit.jpg)
Volker, R., and S. G. Smith. 1975. Changes in the aquatic vascular flora of Lake East Okoboji in historic times. Proc. Iowa Acad. Sci. 72: 65–72. ![Find in a library](images/findit.jpg)
Voss, E. G. 1966. Nomenclatural notes on monocots. Rhodora 68: 435–463. ![Find in a library](images/findit.jpg)
Voss, E. G. 1972. Michigan flora, Part 1: gymnosperms and monocots. Cranbrook Institute of Science, Bloomfield Hills, Mich. ![Find in a library](images/findit.jpg)
Voss, E. G. 1985. Michigan flora, Part 2: dicots (Sauraceae-Cornaceae). Cranbrook Institute of Science, Bloomfield Hills, Mich. ![Find in a library](images/findit.jpg)
Wagenknecht, B. L. 1954. The flora of Washington County, Iowa. Proc. Iowa Acad. Sci. 61: 184–204. ![Find in a library](images/findit.jpg)
Wagner, W. L. 1983. New species and combinations in the genus Oenothera (Onagraceae). Ann. Missouri Bot. Gard. 70: 194–196. ![Find in a library](images/findit.jpg)
Walker, P. H. 1966. Postglacial environments in relation to landscape and soils on the Cary Drift, Iowa. Iowa Agric. Exp. Stn. Res. Bull. 549: 838–875. ![Find in a library](images/findit.jpg)
Webber, J. M., and P. W. Ball. 1979. Proposals to reject Carex rosea and Carex radiata of eastern North America (Cyperaceae). Taxon 28: 611–616. ![Find in a library](images/findit.jpg)
Webber, J. M., and P. W. Ball. 1984. The taxonomy of the Carex rosea group (section Phaestoglochin) in Canada. Can. J. Bot. 62: 2058–2073. ![Find in a library](images/findit.jpg)
Welsh, S. L. 1960. Legumes of the north-central states: galegeae. Iowa State J. Sci. 35: 111–250. ![Find in a library](images/findit.jpg)
Wemple, D. K. 1970. Revision of the genus Petalostemon (Leguminosae). Iowa State J. Sci. 45: 1–102. ![Find in a library](images/findit.jpg)
White, J. A., and D. C. Glenn-Lewin. 1984. Regional and local variation in tallgrass prairies of Iowa and Nebraska. Vegetation 57: 65–78. ![Find in a library](images/findit.jpg)
Wilson, B. L. 1992. Checklist of the vascular flora of Page County, Iowa. J. Iowa Acad. Sci. 99: 23–33. ![Find in a library](images/findit.jpg)
Wilson, B. L. 1993. Some significant Iowa plant records from the herbarium of University of Nebraska at Omaha. J. Iowa Acad. Sci. 100: 87–89. ![Find in a library](images/findit.jpg)