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REAPPRAISAL OF UTRICULARIA INFLATA AND U. RADIATA (LENTIBULARIACEAE)
Author(s) -
Reinert Grady W.,
Godfrey R. K.
Publication year - 1962
Publication title -
american journal of botany
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.218
H-Index - 151
eISSN - 1537-2197
pISSN - 0002-9122
DOI - 10.1002/j.1537-2197.1962.tb14931.x
Subject(s) - radiata , biology , disjunct , taxon , range (aeronautics) , botany , tsuga , ecology , vigna , population , demography , materials science , sociology , composite material
R einert , G rady , W., and R. K. G odfrey . (Florida State U., Tallahassee.) Reappraisal of Utricularia inflata and U. radiata (Lentibulariaceae). Amer. Jour. Bot. 49(3): 213–220. Illus. 1962.— Utricularia inflata and U. radiata , interpreted either as separate species or 2 varieties of a single species by previous investigators, are shown to be specifically distinct on the basis of 5 hitherto‐neglected, morphological characters, 4 of which are vegetative in nature, and on the basis of 3 reinvestigated quantitative criteria. The particular attention devoted to the vegetative bodies of the 2 plants led to the discovery, in U. inflata , of tuber formation, a phenomenon known to occur in Utricularias in general but unreported for North American species. Support for interpreting U. inflata and U. radiata as species resides in the distribution patterns. Although both occur on the outer coastal plain from southern Alabama to southern Delaware, the 2 taxa are easily distinguishable and exhibit no intergradation. The range of U. radiata is much broader; it extends westward to eastern Texas northeastward to Nova Scotia, and is disjunct inland in western Tennessee, western Virginia and in northwestern Indiana.