A checklist for the 20 Didymocarpus species on Gunung Tahan is given Three new species, D. codonion, D. polyanthoides and D. yongii are descibed. The species Ridley called D. kompsoboea is renamed D. lithophilus. D. filicifolius is reduced to synonomy with D. salicinus and reasons for not recognising var. montanus of D. flavobrunneus are given.
Didymocarpus (Gesneriaceae) on Gunung Tahan, Malaysia
Publication: Gardens' Bulletin Singapore