Contribution of morphometry to the taxonomy of Baptistonia Barb. Rodr. (Orchidaceae)

Guy Robert Chiron (1) , Gaëtan Guignard (2) , Georges Barale (2)

1 UCBL - Université Claude Bernard Lyon 1
2 PEPS - PaleoEnvironnements et PaleobioSphere

The genus Baptistonia Barb. Rodr. (Orchidaceae) includes 23 species, all endemic to Brazil. As problems occur to differentiate some taxa of this genus, because of their hypothetical hybrid origine, the present study aims to use morphometry as an attempt to solve these issues. Twenty six floral morphometric characters were measured on 146 specimens, and analysed using multivariate analysis, such as Neighbour Joining Analysis (NJA), Principal Coordinates Analysis (PCoA) and Discriminant Analysis (DA). Morphometric data proved to be very useful for species delimitation, and a statistical tool here is prese

Mots clés: Orchidaceae; Baptistonia; Brazil; Morphometry; Multivariate analysis; Taxonomy

Domaines: Autre

Guy Robert Chiron, Gaëtan Guignard, Georges Barale. Contribution of morphometry to the taxonomy of Baptistonia Barb. Rodr. (Orchidaceae). Candollea, 2010, 65 (1), pp.45-62. ⟨insu-00672202⟩