ALATIGLOSSUM BAPTISTA (ORCHIDACEAE) REVISITED

摘要

The generic limits of Alatiglossum Baptista are redefined and one new combination, Alatiglossum herzogii, is proposed. Since 2004 Brazilian taxonomists have been working on the revision of Brazilian species subordinated to genus Oncidium Sw. Phylogenetic studies indicate that Brazilian species of Oncidium are located in a different clade from core species of this genus and therefore need new classification. In February of 2006, we proposed to divide the Brazilian species into six genera (Docha Neto et al. 2006). Later V. P. Castro & Catharine went further and divided again, creating four more genera to accommodate our species of Oncidium. From what we originally proposed as Alatiglossum two genera were created, Neoruschia Cath. & V.P. Castro and Kleberiella V.P. Castro & Catharino. Neoruschia was proposed to accommodate only the small Oncidium cogniauxianum Schltr; and Kleberiella to accommodate the six species of Oncidium longipes Alliance. We are provisionally accepting the four genera Castro proposed; thus we treat Alatiglossum Baptista here as it remains after the additional divisions.