Comments on Southwestern United States Evolvulus and Ipomoea (Convolvulaceae)

Publication Type:Journal Article
Year of Publication:1990
Authors:Austin
Journal:Madroño
Volume:37
Pagination:124-132
Keywords:Evolvulus, GS, Ipomoea, lectotype, North America, typification
Abstract:

Evolvulus alsinoides and E. arizonicus have historically been difficult to distinguish. Most specimens of these two taxa may be identified by corolla size; all specimens in this region by sepal size. Typification of E. arizonicus is discussed, and a lectotype chosen. The name Ipomoea hirsutula has been a mixed concept applied to two species in publications for a number of years. Proper names of these species (Ipomoea hederacea and I. purpurea), their traits, and ways of distinguishing them are discussed.

Alternate Journal:Madroño
Fri, 2011-05-20 10:22 -- Esmond
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Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith