Abstract Detail

Systematics

Robart, Bruce W. [1], Apple, Krystal [2], Opferman, Carol [2].

Reassessment of the Pedicularis sudetica Taxonomic Complex: Species or Subspecies?

Pedicularis sudetica is currently known as a complex of 6 flowering plant taxa, classified as separate species or subspecies. P. sudetica is found throughout Alaska, arctic and subarctic Canada, and northern Siberia. Previous research used clustering analysis of qualitative characteristics to determine that only one taxon could be clearly distinguished among 165 specimens that supposedly represented five of the six taxa. On the same set of specimens, our research group measured basal leaf length and width, length of the plant, cauline leaf length and width, bract length and width, galea length, galea extension, tooth angle and length, as well as calyx lobe length. We will report on the results of Principle Components Analysis (PCA) and Canonical Discriminants Analysis (CDA) to differentiate the taxonomic groupings. Our preliminary analysis was unable to differentiate specimens into taxa according to previous taxonomic classifications.

1 - University Of Pittsburgh JOHNSTOWN, 450 Schoolhouse Road, JOHNSTOWN, PA, 15904, USA
2 - University of Pittsburgh at Johnstown, Biology, 450 Schoolhouse Road, Johnstown, PA, 15904, USA

Keywords:
Pedicularis sudetica
taxonomy.

Presentation Type: Poster
Session: P, Systematics Section/ASPT Posters
Location: Exhibit Hall/Savannah International Trade and Convention Center
Date: Monday, August 1st, 2016
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: PSY043
Abstract ID:441
Candidate for Awards:None