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Abstract Detail


Irick, Zach [1], Estes, Dwayne [1].

Taxonomy of the Clematis viorna complex (Clematis subgenus viorna) of the southeastern United States. .

It has long been assumed that the flora of the southeastern United States has thoroughly been exploited through many phases of plant taxonomic discovery. Despite this notion, many new vascular plants species are frequently being discovered from biodiversity hotspots of high plant endemism. As expected, many of these discoveries constitute taxonomically complex genera that allude to biological relationships that remain to be resolved. This project reexamines the taxonomy of a sub-set of the North American Clematis subgenus viorna. Specifically, defined as the Clematis viorna complex, an artificially derived classification consisting of Clematis viorna sensu stricto; the synonymized historical taxa: Clematis beadlei, Clematis flaccida, Clematis gattingeri; and eight putative new allopatric taxa delimited by morphology and physiography. Extensive field work to voucher herbarium and living material has been completed over a two-year growing season for all named and potentially undescribed taxa within the complex. All accessions are grown in duplicate sets at the campuses of Austin Peay State University and Mt. Cuba Center. Living material is being utilized for studying phenetic and phenological characteristics and extensively photographed across all developmental stages. Morphometric analyzes utilized are multi-faceted in approach. ImageJ software is being used to take quantitative measurements of 20 floral and vegetative characters for 12 OTUs from digitized Herbarium Specimens. The goal of this project is a re-circumscription of Clematis viorna, the resurrection of historical taxa from synonymy, and potential description of eight new species if supported by analyses.

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1 - Austin Peay State University, Center of Excellence for Field Biology, PO Box 4718, Clarksville, TN, 37044, United States

none specified

Presentation Type: Poster
Session: P, Systematics Posters
Location: Arizona Ballroom/Starr Pass
Date: Monday, July 29th, 2019
Time: 5:30 PM This poster will be presented at 5:30 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: PSY015
Abstract ID:626
Candidate for Awards:None

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