Resumen de Studies on Homalomeneae (Araceae) of Borneo XII - Homalomena tirtae, a new species from Kalimantan Timur, Indonesian Borneo, and notes on the Homalomena Borneensis Complex

Ni Putu Sri Asih, Agung Kurniawan, Peter C. Boyce

• Homalomena tirtae from Mount Sidi, Kalimantan Timur, is described as a species new to science and illustrated from living plants. It is the fourth described species of the Borneensis Complex and the first recorded for eastern Borneo. A key to and a comparison plate with the spadices of the four species of the Borneensis Complex is provided.