Gastorchilus pseudodresslerii (Orchidaceae; Vandeae), a new species from China: evidence from morphological and DNA analysis

• DOI: 10.11646/phytotaxa.634.1.6
• Publication Date: 2024-01-10T21:07:02Z
• Authors: CHENG-YUAN ZHOU; MENG-YAO ZENG; YU-WEI WU; MING-HE LI
• Keywords: Sepal; Orchidaceae; Petal; Apex (geometry)

Gastrochilus pseudodresslerii (Aeridinae), a new species from Maguan County, Yunnan Province, China, is described and illustrated. Morphological comparisons indicated that this similar to G. dresslerii, but differs by its longer broadly lanceolate oblong leaves, larger elliptic dorsal sepal, petals, subcupular hypochile, narrowed toward apex of column. Phylogenetic analysis based on nuclear ribosomal ITS four plastid sequences (atpI, matK, psbA trnL-F) also closely related formosanus raraensis, can be easily distinguished these two epichile hypochile.