Translator Disclaimer
1 September 2016 The Dilemma of Species Recognition in the Field When Sequence Data are not in Phase with Phenotypic Variability
Author Affiliations +
Abstract

This contribution on the genus Cantharellus in North America introduces three new look-alikes of already known species in the eastern United States and thereby exposes the problem of species delimitation in Cantharellus. The small, reddish pink to orange C. corallinus sp. nov. is yet another look-alike of C. cinnabarinus, while the new C. flavolateritius is proposed as a new southern relative of C. lateritius. Both new species are, however, genetically clearly divergent. Such a scenario of “cryptic species” corresponds to a concept that is widely admitted even by field mycologists and therefore easily accepted. In contrast, typical forms of the here newly described C. velutinus sp. nov. are nearly indistinguishable from C. lateritius, but the phenotypic variability of this new species (as supported by phylogenetic inference of the TEF-1 gene) is so impressive that it is hard to accept that the various observed phenotypic forms all belong to a single species as indeed suggested by their identical sequence data. The latter scenario, that of lumping easily separable phenotypic forms in the field under a single species epitheton encounters much more criticism from most field mycologists and is only reluctantly accepted.

© 2016 Adac. Tous droits réservés
Bart Buyck, Ibai Olariaga, Jay Justice, David Lewis, William roody, and Valérie Hofstetter "The Dilemma of Species Recognition in the Field When Sequence Data are not in Phase with Phenotypic Variability," Cryptogamie, Mycologie 37(3), 367-389, (1 September 2016). https://doi.org/10.7872/crym/v37.iss3.2016.367
Published: 1 September 2016
JOURNAL ARTICLE
23 PAGES

This article is only available to subscribers.
It is not available for individual sale.
+ SAVE TO MY LIBRARY

SHARE
ARTICLE IMPACT
RIGHTS & PERMISSIONS
Get copyright permission
Back to Top