The new name Frangula paruensis (Rhamnaceae) is proposed to replace the illegitimate homonym Rhamnus longipesSteyermark (1988). Chorological, taxonomic, biogeographical, and habitat notes about this taxon also are provided.

The 18 species accepted as valid for the genus Stelis from the islands of the Antilles, excluding Trinidad and Tobago, are described and illustrated. One new species, S. minima, is proposed, a neotype is selected for Stelis crassifolia, and a lectotype is selected for S. tippenhaueri.

A new combination in Euploca (Heliotropiaceae), E. asperrima, endemic to the Galapagos Archipelago, Ecuador, is proposed herein.

Two new combinations in Varronia (Cordiaceae, Boraginales) are proposed, both species endemic to Colombia: V. fuertesii and V. ramirezii.

New names, synonymy, and two new species are proposed for the orchid flora of Indonesia. Thus Habenaria undatifolia and Odontochilus buruensis are proposed as replacement names; Dendrobium babiense is reduced to D. nycteridoglossum; Kalimantanorchis is found to be a synonym of Tropidia, requiring the combination T. nagamasui; Aerides zollingeri is transferred to Tuberolabium with Saccolabium odoratissimum as a new synonym; and two new species are proposed, namely, Dendrobium asahanense and Styloglossum morotaiense.

Two taxa of Meconopsis, growing on metalliferous mountains adjacent to Wanba () valley, Jiulong Xian (), southwestern Sichuan, China, are described as new and accompanied by photographs. The first taxon, M. wanbaensis, is distinguished from related species by such unique features as the prominently undulate petals and obconical style. The second taxon, M. pulchella var. melananthera, is distinguished from var. pulchella by features of the anthers and bristles.

Meconopsis integrifolia var. uniflora is raised to the rank of species with the name M. uniflora. An emended diagnosis, distribution information, description, habitat details, and explanatory photographs are provided.

Psychotria golmanii is described from remote environments in Papua New Guinea's upper Sepik drainage. The new species is similar to other congeners with reflexed peduncles but is immediately distinguished by its diminutive stature and tomentose panicles.