Abstract Detail



Systematics

Tressel, Lydia [1], Vincent, Michael [2].

Revision of the Trifolium depauperatum species complex.

The plant family Fabaceae is known for its economic importance, including important crop plants. Among important crops is the well-known clover genus, Trifolium, encompassing about 230 species (Zohary & Heller 1984; Ellison et al. 2006), that likely is Mediterranean in origin. Trifolium depauperatum Nutt., commonly known as cowbag clover or dwarf sack clover, is native to western North and South America, and has been found in British Columbia, Washington, Oregon, Idaho, California, Mexico, and Chile. Trifolium depauperatum has not been studied in detail and encompasses a great deal of morphological variation. The most recently published names associated with the T. depauperatum species complex include T. depauperatum var. depauperatum, T. depauperatum var. amplectens, T. depauperatum var. truncatum, and T. hydrophilum (Vincent and Isely 2012).  Herbarium specimens of the Trifolium depauperatum species complex collected throughout western North and South America were studied. Specimens representing the known geographical range of the species complex were examined in order to understand the range of morphological characteristics based on geographic location. Data for 41 characters were analyzed using the statistical program NTSYS (Rohlf 2000). Analyses of the data show that there are four clusters of OTU’s, which correspond to the four currently recognized taxa.


1 - Biology Dept., Miami University, Oxford, OH, 45056, United States
2 - Miami University, Department Of Biology, Herbarium, 79 Upham Hall, 100 Bishop Circle, Rm. 79 Upham Hal, Oxford, OH, 45056, United States

Keywords:
Fabaceae
species complex
Trifolium.

Presentation Type: Poster This poster will be presented at 6:15 pm. The Poster Session runs from 5:30 pm to 7:00 pm. Posters with odd poster numbers are presented at 5:30 pm, and posters with even poster numbers are presented at 6:15 pm.
Number: PSY022
Abstract ID:880
Candidate for Awards:None


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