Abstract Detail

Recent advances in phylogeny and systematics of Brassicaceae 

Al-Shehbaz, Ihsan [1].

Brassicaceae of the World: Current Status of its Taxonomy.

Brassicaceae of the World: Current Status of itsTaxonomy Ihsan A. Al-Shehbaz Missouri Botanical Garden, St. Louis, MO 63166-0299 Generic delimitation and tribal classification of the family Brassicaceae (Cruciferae) has been the subject of tremendous advancements during the past century. Following the publication in 2006 of the first comprehensive phylogeny and nearly the simultaneous first tribal classification of the family, the number of monophyletic tribes has doubled from 25 to its current 51. Although the number of currently recognized 329 genera appears unchanged for the past decade, about 43 genera were reduced to synonymy and some 45 others were described as new or re-instated. Due to the predominance of convergence in every conceivable morphological feature, defining generic boundaries has become increasingly difficult using the conventionally used characters. A survey of the less than dozen unique morphologies in the Brassicaceae will be presented. Furthermore, the task of writing a conventional binary keys to identify the genera has become an almost an impossible task. The interactive key proposed by the author over ten years ago is highly outdated due to the changes in generic circumscriptions and the utilization of less than 50 characters. A new version will be introduced, but it is a work in progress that will take considerable effort to score all genera of the family for many added features. Once completed, the new interactive key will be permanently placed on the BrassiBase and World Flora Online Websites.

1 - Missouri Botanical Garden, P.O. Box 299, St. Louis, MO, MO, 631660299, USA

Keywords:
Brassicaceae
Current taxonomy.

Presentation Type: Colloquium Presentations
Session: C2
Location: Salon 8/The Shaw Conference Centre
Date: Monday, July 27th, 2015
Time: 1:45 PM
Number: C2002
Abstract ID:350
Candidate for Awards:None