Introduction. – Bletilla striata (Thunb.) Reichb. f. (Orchidaceae) is mainly distributed in East Asia, and its tubers are used as a Chinese traditional medicine for the treatment of tuberculosis and haemorrhage of the stomach or lung [1]. Previous phytochemical studies on Bletilla species have led to the isolation of phenanthrene derivatives [2 – 11], bibenzyls [2] [4], flavonoids and phenolic ...

In the present study we investigate the concept of phylogenetic niche conservatism (PNC) within the American species of angraecoid orchids (Campylocentrum and Dendrophylax) and their closest relatives in the Old World (Angraecum) using ecological niche modelling (ENM). The predicted niche occupancy profiles were matched with the outcomes of previous phylogenetic studies to reconstruct the evolu...

Habenaria karstica J.A.N.Bat. sp. nov., a new species from limestone outcrops (i.e., karst) in the State of Minas Gerais, Brazil, is described. The ecologically very distinct since it only Neotropical genus that grows on under full sun, associated with mat-forming saxicolous plants. It morphologically similar to repens complex, and separation possible through combination morphological character...

Phylogenetic relationships of the orchid genus Spathoglottis (Orchidaceae: Collabieae) in Peninsular Malaysia and Borneo were inferred using internal transcribed spacer a nuclear ribosomal DNA (nrITS), plastid gene maturaseK (matK) region trnL-F. Eleven species three infraspecific taxa examined, with two outgroup species, included phylogenetic analysis. The combined data revealed as monophyleti...