Flowers hermaphrodite. 
Both surfaces of leaves glabrous except tho 
nerves. 
Both surfaces minutely granular ; nerves 
9 or 10 pairs, sparsely pilose beneath ... I. P. pauciflvra. 
* Lower surface granular, the midrib and 
6 to 8 pairs of nerves pubescent ... 2. P. ramosissima. 
Both surfaces shining, reticulate, glabrous 
except the tomentose midrib on the 
upper ; nerves about 10 pairs, very faint 3. P. nitida. 
Upper surface of leaves glabrous, the lower 
minutely granular and sub-strigose ; nerves 
4 or 5 pairs ... ... ... 4. P, EeJferi. 
Upper surface of leaves glabrous except the 
puberulous midrib, the lower yellowish-to- 
mentose; nerves 11 to 13 pairs ; fruit very 
large ... ... ... ... 5. P.fcetida. 
Upper surface of leaves glabrous except the 
tomentose midrib and 8 to 10 pairs of nerves ; 
lower surface pubescent and sub-granular ... 6. P. perakensis. 
Both surfaces minutely granular; upper short- 
ly puberulous, lower pubescent ; nerves 8 to 
11 pairs... .„ ... ... 7. P.fusca. 
Both surfaces minutely granular ; upper with 
a few scattered hairs ; lower fuscous, densely 
and softly pubescent; the nerves 6 or 7 
pairs, tomentose or pubescent ... ... 8. P. velutina. 
Both surfaces, but especially the lower, softly 
pubescent ; nerves about 10 pairs ... 9. P. tomentosa. 
Flowers polygamous. 
Upper surface of leaves glabrous except the 
puberulous midrib ; nerves 10 or 11 pairs ; 
flowers b to 75 in. in diam ; petals of inner 
row larger than those of outer, valvate, their 
apices inflexed in bud 
Upper surface of leaves sub-granular, minutely 
and sparsely aclpressed-pubescent ; nerves 9 
to 12 pairs ; flowers *4 in. in diam. ; inner 
petals slightly smaller than the outer, im- 
bricate ... ... ... ... u. p. Kurzii. 
Both surfaces of leaves glabrous, the lower 
silvery, shining; nerves 7 pairs ... 12. P. Uookerl 
310 
10. P. nerdfolia. 
