Greenwoodiella, a New Genus of Spiranthinae (Orchidaceae) from North and Central America and the Greater Antilles, with a New Species from the Chihuahuan Desert
2016; American Society of Plant Taxonomists; Volume: 41; Issue: 4 Linguagem: Inglês
10.1600/036364416x693937
ISSN1548-2324
AutoresGerardo A. Salazar, Tania J. Hern�ndez-L�pez, Jyotsna Sharma, Rolando Jim�nez-Machorro, L. Cabrera, Jacinto Trevi�o-Carre�n,
Tópico(s)Plant and Fungal Species Descriptions
ResumoAbstract A new orchid species from the Chihuahuan Desert region in Tamaulipas, Mexico and Texas, U. S. A., is described and illustrated. The phylogenetic position of the new species was assessed by parsimony and maximum likelihood analyses of nuclear (ITS) and plastid (matK-trnK, trnL-trnF) DNA sequences of 61 species/35 genera of Spiranthinae and 15 additional species and genera of Cranichideae. The results indicate a close relationship of the new species to several species previously included in Schiedeella, especially S. wercklei, but our analyses also show that such a group does not belong to the clade that includes the type species of Schiedeella (S. transversalis), being instead sister to Mesadenus. A new genus, Greenwoodiella, is proposed to include the new species (G. deserticola) and its closest relatives (G. micrantha var. micrantha, G. micrantha var. garayana, and G. wercklei). The identity of Lexarza's Neottia micrantha is clarified, the other species belonging in this clade are discussed, and...
Referência(s)