(DOWNLOAD) "New and Noteworthy Sedge Records in Illinois (Report)" by Transactions of the Illinois State Academy of Science * Book PDF Kindle ePub Free
eBook details
- Title: New and Noteworthy Sedge Records in Illinois (Report)
- Author : Transactions of the Illinois State Academy of Science
- Release Date : January 01, 2010
- Genre: Engineering,Books,Professional & Technical,
- Pages : * pages
- Size : 197 KB
Description
INTRODUCTION The sedge family, Cyperaceae, is well-known to be diverse in Illinois, particularly within the genus Carex. The number of known Illinois species has increased over the years as botanists have continued to study and sample the flora. Jones (1963) included 14 sedge genera [Bulbostylis, Carex, Cladium, Cyperus, Dulichium, Eleocharis, Eriophorum, Fimbristylis, Fuirena, Hemicarpha, Lipocarpha, Rhynchospora, Scirpus, Scleria] in the state with 196 species, 122 of which were in the genus Carex alone. Mohlenbrock (1986) included 13 sedge genera in the state (combining Hemicarpha with Scirpus) with 230 species, 141 of which were in Carex. His increase of 34 species included (among others) 3 additions in Rhynchospora, 4 in Cyperus, 7 in Scirpus, and 19 additions in Carex mostly as a result of new finds, but also partly as a result of combinations and splits in some species by sedge experts. The most recent treatment of the Illinois flora by Mohlenbrock (2002) included an increase of sedge genera to 19 due to changes in nomenclature rather than to finds of new genera in the state. Scirpus was divided into six genera: Bolboschoenus, Hemicarpha [resurrected], Isolepis, Schoenoplectus, Scirpus, and Trichophorum, and Cyperus was divided into Cyperus and Kyllinga. This 2002 treatment of Illinois Cyperaceae included 251 species, 159 of which were in Carex. The increase in the number of reported Carex species can be explained by several nomenclatural changes as well as by new discoveries made since Mohlenbrock (1986). The new discoveries included, among others, Carex arkansana (L. H. Bailey) L. H. Bailey, C. baileyi Britt. (since discounted as occurring in Illinois, because the voucher was misidentified [Ebinger et al. 2010]), C. canescens L., C. crawfordii Fern., C. formosa Dewey, *C. hirta L., *C. praticola Rydb., and *C. spicata Huds. (asterisks '*' indicate non-native species). Twelve of the new Carex records were discussed in detail by Swink and Wilhelm (1994). At least two of the other additions to Carex were based upon an examination of old records rather than the discovery of new sites, for example, C. deweyana Schwein. (not seen in Illinois since 1954 [Mohlenbrock 2002]) and C. folliculata L. (not seen in Illinois since 1926 [Swink and Wilhelm 1994; Mohlenbrock 2002]), and several other additions were the result of nomenclatural changes that split species, such as C. longii Mack. and C. radiata (Wahlenb.) Small. In the Illinois portion of the Chicago area, Swink and Wilhelm (1994) also included C. annectens Bickn., not included in the state by Mohlenbrock (2002), perhaps in error.
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