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Lianas. Leaves not peltate or very slightly peltate; Inflorescences axillary, terminal or cauliflorous;


Andaman Is: present Asia-Tropical:, Assam (Assam present); Bangladesh (Bangladesh present); Borneo present; Philippines (Philippines present); Sulawesi (Sulawesi present); Sumatera (Sumatera present) Peninsular Thailand: present SE Asia: present W. Java: present
SE Asia (Assam, Bangladesh, Peninsular Thailand, Andaman Is.); in Malesia: Sumatra, W. Java, Borneo, Celebes and the Philippines.


The scanty material of this genus is inadequate to decide with certainty how many species should be recognized. It is difficult to assess the significance of some of the rather marked differences between specimens. In view of the nature of the material available I feel that the broader view of HOOKER.f. & THOMSON of species is preferable and I therefore recognize only two species in the genus.
Baterium was first reduced by DIELS (1910).


MIERS - in Contr. Bot. 1871: t. 134
DIELS - in Pfl. R. 1910: 56
FORMAN - in Kew Bull. 1972: 419
MIERS - in Ann. Mag. Nat. Hist. 1867: 194
FORMAN - in Kew Bull. 1975: 81
MIERS - in Kew Bull. 1975: 81