Revision of Antennaria isolepis, A.pallida, A. pedunculata,and A.rousseaui(Asteraceae: Inuleae):apomictic North American arctic‐alpine species

• Published in: American Journal of Botany
• Main Author: Chmielewski, Jerry G.
• Other Authors: Commonwealth of Pennsylvania State System
• Format: Article in Journal/Newspaper
• Language: English
• Published: Wiley 1995
• Subjects: Arctic
• Online Access: http://dx.doi.org/10.1002/j.1537-2197.1995.tb11570.x; https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fj.1537-2197.1995.tb11570.x; http://onlinelibrary.wiley.com/wol1/doi/10.1002/j.1537-2197.1995.tb11570.x/fullpdf

Canonical discriminant analysis was used to assess the taxonomic status of the broad‐phyllaried taxa Antennaria isolepis, A. pallida, A. pedunculata , and A. rousseaui. High cross‐validation assignment rates as well as high Geisser assignment probabilities for each of the taxa included in the phenetic study indicate that A. gaspensis, A. media, A. microphylla, A. parvifolia, A. pulvinata, A. rosea , and A. umbrinella are morphologically distinct from these broad‐phyllaried species. Several characteristics may be used to distinguish the latter species from the former, the most distinguishing of which is, however, the atypically broad involucral bracts. Qualitative gross morphology, reproductive biology, floret phenology, and provenance also may be used to help distinguish among the species. These characteristics, in addition to the results of the canonical discriminant analysis, support a classification scheme that recognizes the broad‐phyllaried species as A. pallida. Type collections of A. isolepis, A. pedunculata , and A. rousseaui were assigned to A. pallida through the use of the classification criterion. Included in the taxonomic treatment of A. pallida is a synonymy, species description, and citation of representative specimens.