Ahlquist, Tia K, , Vincent, Michael A. .
A Morphological Analysis of the Trifolium amabile Kunth Species Complex.
Trifolium amabile Kunth (Fabaceae) is a New World complex of clover populations ranging from the mountains of southern Arizona of the United Sates, throughout the mountainous regions of Central America, and continuing southward to the province of C√≥rdoba in northern-central Argentina. In addition to its extensive geographical distribution, the members of this species complex vary greatly in their size, habit, and morphological features. The most recent treatment of this group in the Zohary and Heller monograph recognizes five varieties of T. amabile: T. amabile var. amabile, T. amabile var. hemsleyi, T. amabile var. pentlandii, T. amabile var. mexicanum, and T. amabile var. longifolium. However, this treatment is outdated and inadequate, and other studies have noted that the distinctions among the varieties are not clear. Specimens from herbaria worldwide have been utilized for a morphometric examination of a suite of vegetative and reproductive characters to determine specific and/or subspecific boundaries. Preliminary analyses have shown the potential for multiple distinct taxa within this complex. Data was analyzed using standard taxonomic statistical packages. The results of this study along with a distribution map will be presented.
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1 - Miami University, Botany, Oxford, OH, 45056, USA
2 - Miami University, Department of Botany, Oxford, Ohio, 45056, USA
Presentation Type: Poster:Posters for Sections
Location: Hall A/Convention Center
Date: Monday, August 2nd, 2010
Time: 5:30 PM