134 
tho reticulations and 6 pairs of norves bold nnrl prominent ; length 4 to 
5 in., breadth 1*25 to 1'75 in. ; petiole 2 to "3 in. Panicles axillary and 
terminal, slender, spreading, Flowers '25 in. in diam. ; shortly pedicellate. 
Sepals 5, pubescent, slightly unequal. Ovary hairy. Samaras 2 in. 
long ; the nucleus 1 in, to 125 long, triangular, flat ; the wing thinly 
membranous, pale yellow, oblong, its apex blunt, oblique, venation 
vertical, the areolae wide. Isopteris penanyiana, Wall. Cat. 7261. 
Penang. Malacca. Perak; common. 
Tho pubescence on tho under surfaces of tho leaves is'so minute 
that, without a good lens, it is not seen. 
5. Xanthophtllum, Roxb. 
Trees or Bhrubs. Leaves coriaceous or sub-coriaceous, usually yellow- 
ish green. Sepals 5, nearly equal. Petals 5 or 4, the inferior keeled, 
not crested. Stamens 8, distinct, 2 attached to the base of petals, the 
others hypogynous. Ovary often surrounded by a hypogynous disc, 
stipitate, l-celled ; style more or less filiform, ovules various in insertion 
and number. Fruit l-celled, 1-seeded, indebiscent. Seeds exalbumi- 
nous, estrophiolate. Distrib. Species about 27, mostly Malayan, a few 
Indian and one in Queensland. 
Ovules 4. 
Leaves membranous or sub-coriaceous (coriace- 
ous in No. 2) small: flowers less than *4 in. 
long. 
Fruit not verrucose. 
Ovary glabrous, fruit shining 
Ovary tomentose 
Nerves of leaves 3 to 4, young 
fruit tomentose ... 
Nerves of leaves4to5,fruit tomen- 
tose, branches very slender ... 
Fruit verrucose. 
Fruit verrucose only when ripe, glab- 
rous; leaf-nerves 9 to 10 pairs 
Fruit verrucose from its youngest state. 
Nerves of leaves 4 to 5, ovary vil- 
lous ; fruit glabrous, vertically 
grooved 
Nerves of leaves 4 to 5 ; ovary vil- 
lous, fruit puberulous not verti- 
cally grooved 
74 
1 . Andamanicu m . 
2. Grffithii. 
3. Maingayi. 
4. glaucum. 
5. Palembanicum. 
6. eurhynchum. 
