Korthalsia. KORTHALSIA. 109 
$ Leaflets whitish beneath ; spikes of slightly tomentose appearance. 
Flowers almost entirely exserted from their involucra. Seed 
with homogeneous albumen. 
10. K. debiis Bi —Sumatra. Borneo. 
$$ Leaflets slightly paler beneath than above; spikes slender of a 
glabrous appearance ; the spathels are produced somewhat beyond: 
the wool of the flower bracts. 
Leaflets at first subglaucous beneath, 
on both surfaees. Fruit very small. 
11. K. rigida }3\.—Malay Peninsula, Sumatra, 
Bangka, Billiton. 
later almost equally green 
Leaflets at first whitish beneath, later only slightly paler than 
above. Fruit globose-turbinate, 14-15 mm. in diam. Seed with 
albumen ruminate. 
12. K. Junghuhnii Mig—Java. 
Ld 
$8$ Leaflets green or nearly so on both surfaces. 
tose appearance (not known in K. celebica). 
Ocrea very densely spinous. Leaflets having the upper 
margins very acutely toothed ; the two lowest leaflets of 
each leaf much smaller than the mesial. 
13. K. Merrillii Bocc Philippines. 
Spikes of tomen- 
Ocrea unarmed. Leaflets having the upper margin 
obtusely toothed; the two lower | leaflets 
about as large as the mesial. 
14. K. celebica Becc—Celebes. 
very 
of every leaf 
Ocrea unarmed. Leaflets having the upper margin very 
acutely toothed; the two lower leaflets of every leaf 
smaller than the mesial. Fruit globose, relatively large, 
15 mm. broad, with scales having the tip appressed and 
the margins ciliate, very slender. 
15. K. Rogersii Becc—Andamans. 
$$$$ Leaflets chalky white underneath. 
Sheathed stem 4—5 mm. in diam. Ocrea smooth. Inflorescence 
formed of only 2—3 spikes. 
16. K. tenuissima Becc—Malay Peninsula 
Tf Large with robust stem (sheathed stem over 2 cm. in diam.). 
$ Spikes thickish of tomentose appearance, the spathels being almost 
entirely immersed in the wool of the flower bracts. 
O Spadices simply branched. 
