Herbarium and literature studies of various orchids from the Malesian floristic zone reveal some new species, synonymy, and the need for a few nomenclatural proposals. Thus, the synonymy of Cestichis halconensis is elaborated; Cymboglossum is found to be the older name for Ascidieria, requiring 8 transfers; Dendrobium appendiculoides is reduced to D. zamboangense; Dendrobium philippinense is reduced to D. gerlandianum; Epidendrum subulatum is reduced to Thrixspermum filiforme; Eria section Polyura is transferred to Pinalia; Eria villosissima is transferred to Mycaranthes; and Myrmechis philippinensis is renamed Odontochilus marivelensis. Six new species are proposed, namely, Dendrobium rubroflavum, Pinalia edanoana, P. kitangladensis, P. pentalopha, P. sanguinea, and P. tonglonensis.