| Abstract Detail
Systematics Hasenstab-Lehman, Kristen [1], McDade, Lucinda [2]. Leaf anatomy and micromorphology in the genus Varroia (Cordiaceae). The genus Varronia (Cordiaceae), comprised of ca. 125 species distributed from Arizona to Argentina, occurs in a variety of biomes. Species richness is especially high in biodiversity hotspots in Mexico, Brazil, and the tropical Andes. Taxonomy within the genus has relied on inflorescence morphology to delimit sections within the genus; however, previous work has demonstrated the need to search for alternative morphological characters for revising sectional level taxonomy of the genus. In this study, 85 species of Varronia were examined for leaf structure and micromorphology. Ancestral states of these characters along with habitat types were reconstructed to evaluate the relative importance of evolutionary and ecological forces in shaping diversity among species. Results demonstrate that much of the foliar variation documented corresponds to changes in habitat type, and not with phylogenetic relationships.
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1 - Rancho Santa Ana Botanic Garden, Research, 1500 N College Ave, Claremont, CA, 91711, USA
2 - Rancho Santa Ana Botanic Garden, Research, 1500 N College Ave, Claremont, CA, 91711
Keywords:
Varronia
Boraginales
leaf anatomy
micromorphology.
Presentation Type: Oral Paper
Session: 17, Asterids I part B
Location: 204/Savannah International Trade and Convention Center
Date: Tuesday, August 2nd, 2016
Time: 8:30 AM
Number: 17003
Abstract ID:899
Candidate for Awards:None |
