102 
MERRILL. 
This variety differs from the typical form, as noted by Prain, in its more 
numerous (usually 7 to 9, rarely 5) leaflets, which are much smaller than in 
the type, mostly less than 3 cm. wide. 
The species extends along the seashores of the Mascarene Islands to India, 
southern China, Malaya, to northern Australia, and Polynesia; the var. xerocarpa 
extends from Ceylon to Sumatra, and the Malay Peninsula. 
Native names: Balic -Italic (Manila, Tayabas) ; bayoc-bayoc (Dinagat, Tinago) ; 
baloc-baloc (Tayabas, Negros, Palawan) ; balot-balot (Camarines) ; maroc-baroc 
(Camarines, Ticao) ; balu-balu (Basilan) ; baoc-baoc (Cebu) ; bani (Tayabas, 
Bataan, Pangasinan, Pampanga, Zambales) ; baney (Cagayan). 
The name bani seems to be more generally applied to the var. xerocarpa, 
which is apparently mostly found at a greater or less distance inland and away 
from the direct influence of salt water; the typical form is usually found close 
to the beach. 
The generic name Pongamia Vent. (1803) is here retained in accordance with 
the list of nomina conservanda of the Vienna Botanical Congress. The earliest 
name is Pongam Adans. (1763), which was altered to Pungamia by Lamarck 
(1797), and to Pongamia by Ventenant (1803). .0. Kuntze has adopted the 
generic appellation Gajum, adapted from Gaju galedupa of Rumphius (1741), 
while Lamarck (1786), proposed the generic name Galedupa, also from Rumphius, 
and which has been adopted by Taubert in the “Natiirlichen Pflanzenfamilien.” 
The ease is fully discussed by Prain, 50 with especial reference to the objections to 
the use of the generic name Galedupa. 
59. DERR IS Lour. 
, Standard not callose at the base. 
Vexillary filament free throughout; flowers single, in ample thyrsoid panicles 
with nodes neither tumid nor produced into stalks ( § Aganope ) . 
Pod winged only along the upper suture, and sinuate between the seeds; 
corolla nearly 1.5 cm long 1. D. diadelpha 
Pod winged down both sutures, not sinuate between the seeds; corolla 1 cm 
long or less.. .A... 2. D. thyrsiflora 
Vexillary filament united with the others, at least in the middle of the tube; 
flowers fascicled on tumid nodes that are sometimes produced into stalks. 
Pod winged along the upper suture. 
Pod narrowly oblong to lanceolate, less than 1.5 cm wide, narrowed at 
both ends, many times longer than broad. (Unknown in D. polyantha) , 
( § Beach ypterum) . 
Leaflets distinctly retuse at the rather blunt apex, scarcely acuminate, 
up to 13 cm long; racemes very densely flowered, the rachis densely 
pubescent 3. D. polyantha 
Leaflets acute or acuminate, or if retuse then less than 7 cm long and 
distinctly acuminate. 
Pods densely ferruginous-pubescent; an erect tree or shrub. 
4. D. cumingii 
Pods glabrous or nearly so; scandent shrubs. 
Leaflets 3 to 7 cm long, the somewhat acuminate apex usually retuse. 
5. D. scandens 
Leaflets 10 to 13 cm long, rather distinctly subcaudate-acuminate, the 
acumen blunt ■- 6. D. philippinensis 
Journ. As. Soc. Beng. 66 2 (1907) 96, 456. 
