Towards a revision of Paraboea (Gesneriaceae): I.

Preparatory to a full revision of Paraboea (C. B. Cl.) Ridley (Gesneriaceae) 16 new species are described: these come from China (I), Laos (1), Thailand (8), Malay Peninsula (1), Borneo (4 – 2 from Sabah, 2 from Kalimantan) and Sulawesi (1). There is also a new variety of P. multiflora (Thailand). All these plants have spirally twisted fruits except P. amplifolia (Thailand) in which they are short and not twisted.