A Checklist of the Aquatic and Wetland Vascular Plants of Iowa: I
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Proceedings of the Iowa Academy of Science Volume 84 Number Article 3 1977 A Checklist of the Aquatic and Wetland Vascular Plants of Iowa: I. Ferns, Fern Allies, and Dicotyledons Thomas G. Lammers Iowa State University A. G. Van Der Valk Iowa State University Let us know how access to this document benefits ouy Copyright ©1977 Iowa Academy of Science, Inc. Follow this and additional works at: https://scholarworks.uni.edu/pias Recommended Citation Lammers, Thomas G. and Van Der Valk, A. G. (1977) "A Checklist of the Aquatic and Wetland Vascular Plants of Iowa: I. Ferns, Fern Allies, and Dicotyledons," Proceedings of the Iowa Academy of Science, 84(2), 41-88. Available at: https://scholarworks.uni.edu/pias/vol84/iss2/3 This Research is brought to you for free and open access by the Iowa Academy of Science at UNI ScholarWorks. It has been accepted for inclusion in Proceedings of the Iowa Academy of Science by an authorized editor of UNI ScholarWorks. For more information, please contact [email protected]. Lammers and Van Der Valk: A Checklist of the Aquatic and Wetland Vascular Plants of Iowa: I °'L( ,:C'S v,j'f A Checklist of the Aquatic and Wetland Vascular Plants of Iowa: Yl<) .) I. Fems, Fem Allies, and Dicotyledons. 1 e, , ~ THOMAS G. LAMMERS and A.G. VAN DER VALK 2 LAMMERS , THOMAS G. and A . G. VAN DER VALK (Department surveys. For each species, info rmation about its habitat , dis tributio n, of Botany and Plant Pathology , Iowa State University, Ames , Iowa 50011 ). A synonomy , and frequency of occ urrence is provided, plus a distribution map . checklist of the aquatic and wetland vascular plants of Iowa: I. Fems , fem allies, A total of 9 fems , 6 fem allies, and 262 dicotyledons are considered aquatic or and dicotyledons. Proc. Iowa Acad . Sci . 84(2): 41 -88 , 1977. wetland species in Iowa. This paper is an annotated checklist of the aquatic and wetland fems, fem INDEX DESCRIPTORS: Aquatic plants, Iowa flora , wetland plants, fems and allies , and dicotyledons of Iowa and is based primarily on published flori stic fem allies, dicotyledons . This series of papers is intended , by means of an annotated under water. Beal and Monson ( 1954), usin g these criteri a , recog checklist, to provide up-to-date in fo rmation on the kno wn distribu ni zed onl y 224 species of vascul ar aquatic plants in Io wa. tion of wetl and pl ants in Iowa. It is based almost entirely on recent In this seri es of papers, we wish to update and ex pand the Beal floristic surveys conducted by various Io wa authors (see BIBLIOG and Monson ( 1954) checklist. It is our intention in compiling the RAPHY). Specimens in the Herbarium of Io wa State Uni versity also present list to include all species that a worker in wetland ecology were examined in the preparation of this paper. Part I contain s an might encounter in Iowa wetl ands. As a result, some pl ants have annotated checklist and distribution maps of Iowa' s aquatic fem s, been incl uded that are not restricted to wetl and habitats, but that also fern allies, and dicotyledons. Part II will contain an annotated may grow in drier habitats. We define a wetl and plant as any pl ant checklist of the aquati c monocotyledons and a di scussion of species reported in the literature as growing in one or more of the fo ll owin g di stributional patterns in Io wa. Because these pape rs are based Iowa wetland types: primarily on literature reports, we cann ot vouch fo r the identifica tions of specimens other than our own . However, we belie ve th at I) seasonally fl ooded lowlands, most of the determinations included here are accurate . In compiling 2) wet meadows, the checkli st, older literature reports (i.e., pre- 1950) have not been 3) shallo w and deep freshwater marshes, consulted since this literature has already been revie wed in the re 4) open water of vari ous depths, gional fl ori stic surveys done under the directi on of Dr. Robert F. 5) bogs and fens. Thome at the Uni versity of Iowa in the fifties and early sixties. A bibliography of thi s older literature is given in Eil ers ( 1975) who The definition of these wetl and types foll ows th at of Martin et al. also gives a map showing the coverage of the various fl oristic sur ( 1953). As a result of this broader definition, we recogni ze more veys done in the fi fties and sixties. In the checklist , the exact loca th an 470 aquatic and wetland species in Io wa. This is more th an tion as it appeared in the ori ginal literature is provided fo r very rare double the number of species in Beal and Monson ( 1954). species. The herberia where these rare specime ns are housed are The distribution maps given for each species were compiled fro m abbreviated as: published information except for a few species onl y recentl y fo und IA University of Iowa, Iowa City; in Iowa (e.g. , Peltandra virginica) where the voucher specimens !SC Iowa State Uni versit y, Ames; were examined . A species is indicated as present in a county if a ISTC Uni versity of Northern Io wa, Cedar Falls; voucher specimen is known to exist from that county or if, in one of DPM Putnam Museum , Davenport; the regional surveys, it was observed in that county even if no vo u PC Parson' s College, Fairfield. cher specimen was collected . The distribution of most aquati c and Beal and Monson' s ( 1954) The Marsh and Aquatic Angiosperms marsh plants undoubtedly is wider th an is indicated in the maps in as of Io wa was the fi rst comprehensive checklist of Io wa aquati c pl ants. It also contained keys fo r identi fy ing the plants, brief habitat and much as they seem to have been inadequately collected in the re range info rmation, and distribution maps based on herbarium speci gional surveys. This is especiall y true of submerged species. A map mens examined by the authors. However, this work has two major of Io wa identifying the counties is given in Fig. I to help in inter deficiencies. First, it is more than 25 years o ld and predates the preting the distribution maps. regional Iowa fl ori sti c surveys mentioned previously . Second, Beal The nomenclature in these checklists is based on Cronquist ( 1963) and Monson ( 1954) use a narrow definition of an aquatic plant. It is except for grasses, when Pohl ( 1966) is fo ll owed. In compiling this much the same as th at of Dr. N. C. Fassett ( 1940) who defined an checJdist , numerous nomenclatural problems were encountered: di f aquatic pl ant as any plant visible to the naked eye, which, under ferent authors have treated certain taxa at different levels (species, norm al conditions, may germinate and grow with at least its base subspecies, variety, or form) because they have fo ll owed different authorities. Because of these inconsistencies in th e literature , we have not included any taxonomi c categori es below the species, ex 'Journal Paper No. J-8719 of the Iowa Agriculture and Home Economics cept in a few cases where statewide information is available for a Experiment Station, Ames, Iowa. Project 2071. 'Department of Botany and Plant Pathology, Iowa State University, Ames, subspecies. In the checklist , families are arranged according to Iowa, 50011 . Cronquist ( 1968), but genera and species are arranged alphabeti - Published by UNI ScholarWorks, 1977 1 Proceedings of the Iowa Academy of Science, Vol. 84 [1977], No. 2, Art. 3 42 PROC. IOWA ACAD. SCI. 84 (1977) call y. An index to genera is provided at the ends of Part I and II. II. EQUISETOPHYT A Introduced species are indicated by an asterisk. We hope that these papers will be immediately useful to those EQUISETACEAE worki ng in many areas of wetland ecology and management . We Equisetum arvense L. Map 1-C also hope that the compilation of thi s materi al will aid in the even Common Statewide; wet ditches, roadsides, rail ways , stream tual preparation of a mu ch needed state fl ora . This has been the goal bank s, alluvial open woods, prairie swales. of Iowa botani sts sin ce C. E. Bessey's first Contributions to th e E. flu viatile L . Map 1-D Flora of Iowa in 1871 , and it is a tragedy that, despite repeated Infrequent in the northeastern third of Iowa; marshes , bogs, and starts, no fl ora has ever been completed. streambank s. £. hyemale L. (£. prealtum Raf.;£. robustum A. Br. ) Map 1-E I. LYCOPODIOPHYT A Common throughout ; wet ditches, alluvial woods, streambank s, roadsides. SELAGINELLACEAE E. sylvaticum L. Map 1-F Selaginella apoda (L.) Spring. Map I-A Rare, scattered locall y in the eastern half of Iowa; wooded MUSCATIN E: abundant in a seepage bog at the foot of a sandy streambank s, bogs, fe ns, and low prairie. bluff along Cedar Ri ver (sec. 15 Lake twp.), Thome 20 178, 1958 (IA). This population is still in existence according to J. H. Peck ( 1976). III. POL YPODIOPHYT A ISOETACEAE OPHIOGLOSSACEAE /soetes melan opoda Gay & Durieu Map 1-B Botrychium simplex E. Hitchc. Map 1-G CLINTON: Clinton, Vasey, 1863 (Mi ssouri Botanical Gard en LINN: sandy pasture near pond (sec. 27, Jackson twp.), Thome and Gray Herbari a). 1411 2, 1954 (IA).