A synopsis of Chenopodiaceae subfam. Betoideae and notes on the taxonomy of Beta

Abstract

Abstract Kadereit, G., Hohmann, S. & Kadereit, J. W.: A synopsis of Chenopodiaceae subfam. Betoideae and notes on the taxonomy of Beta. — Willdenowia 36 (Special Issue): 9–19. — ISSN 0511-9618; © 2006 BGBM Berlin-Dahlem. doi:10.3372/wi.36.36101 (available via http://dx.doi.org/) A synopsis of the phylogeny and systematics of subfamily Betoideae of the Chenopodiaceae is provided and a modified subfamilial classification proposed. Betoideae contain five or six genera, i.e. Beta, Patellifolia, Aphanisma, Oreobliton and Hablitzia. The inclusion of Acroglochin in Betoideae is not clearly resolved by molecular evidence. The five genera (excl. Acroglochin) fall into two clades. These are Beteae with Beta only, and Hablitzieae with the remaining four genera. Of these four genera, Patellifolia formerly has been regarded as a section of Beta (B. sect. Procumbentes). The closer relationship of Patellifolia to Hablitzieae rather than to Beta is supported not only by molecular but also by flower morphological characte...