(Vol.12, 2009-12) Iva Corbinii (Asteraceae): A Remarkable New Species From Travis County, Texas
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Iva corbinii is described from the Colorado River bottoms of Travis County, Texas, to which it appears restricted. It is a remarkably distinct species, having predominately axillary, single heads; its closest relationship appears to be with I. axillaris, but differs from that taxon by umerous traits, most noteworthy by its involucres, which are composed of non-united bracts, suggesting a primitive position in the genus Iva. A photograph of the type collection is provided, along with a colored picture of its eponymous collector standing amongst a living population of the taxon.