Andriamihajarivo, T.H., P.P. Lowry II & G.E. Schatz (2016). Endemic families of Madagascar. XIV. A new restricted range species of Pentachlaena H. Perrier (Sarcolaenaceae) from central Madagascar. Candollea 71: 167–172. In English, English and French abstracts.
Pentachlaena vestita Andriam., Lowry & G.E. Schatz (Sarcolaenaceae) is described as a new species from open, frequently burned vegetation on quartzite substrate on Mt. Ambatolahinanahary in central Madagascar. It can be distinguished from Pentachlaena latifolia H. Perrier, which it most closely resembles, by several foliar characters including leaf size and venation, and especially by the presence of a dense stellate-strigose indument on the inflorescences, flowers, and fruits, and which almost totally obscures the abaxial leaf surface. A description of the new species is accompanied by a line drawing and photos taken in the field, along with a preliminary assessment of its risk of extinction following the IUCN Red List Categories and Criteria, which indicates a status of “Endangered”.