118 ANNALS OF THE ROYAL BOTANIC GARDEN, CALCUTTA. K. scortechint. 
surface, a character which I supposed peculiar to K. horrida, whereas I have 
now found that it is occasionally possessed also by K. Echinometra. 
Puare 70.—Korthalsia horrida Bece.—The entire typical specimen P. B. No. 1918 
in Herb. Beccari. 
5. KortHaLsIiA Cues Bece. "Malesia, nc BT. 
Descriprion.—Of middling size. Sheathed stem 1°5-2 cm. in diameter. Leaves 
large, 2'5 m. long including the cirrus. Leaf-sheaths completely enwrapped by the 
ocreae, except along a narrow strip on the back, which is armed with a line of 
rather stout, 8-10 mm. long, straight horizontal spines.  Ocreae very large, sur- 
passing in length the sheaths they enwrap, 28 cm. long in one specimen, closely 
sheathing in their basal part, for an extent of about 5 cm, cylindrical. and 
disintegrated along the ventral side into a fibrous net; in all the other specimens 
the ocreae are somewhat inflated, cylindrically cymbiform, 2°5 em. broad. have the 
apices obtuse, are so thickly coriaceous as to be dlmost woody, glabrous, almost 
polished and armed only with a few scattered broad-based horizontal ,prickles. The 
petiole is about 30 cm. long (in one leaf), flattened, armed on the edges with 
distant horizontal spines, and below with some solitary claws. The pinniferous part 
is about 80 cm. long; its rhachis trigonous, partially and fugaciously furfuraceous, 
armed below with claws, at first single, then geminate and finally ternate. The cirrus 
is rather irregularly clawed. Leaflets 6 on each side (in one leaf), obliquely elongately- 
rhomboidal with a cuneate base, briefly ansate, with apices acute or shortly caudi- 
culate, papyraceous, green and rather dull above, conspicuously chalky-white beneath; 
the upper margins sinuously not deeply toothed, the teeth acute or occasionally 
subaristate ; the largest leaflets, the intermediate, are 30-40 cm. long, and 10-15 
cm. broad; those of the extremities somewhat smaller. Spadix, unknown. 
Hagitat.—Borneo: in Sarawak on Mount Maitang (Becc. P. B. No. 1936). It 
has been collected again by Dr. Hallier in Dutch Borneo on the Sungei Kenepai 
(No. 2019 in Buitenzorg Herbarium). 
OssERvATIONSs.—Imperfeetly known, nevertheless very ‘distinct from the other 
species by its not very inflated but extraordinarily elongate and very hard ocreae. 
It approaches K angustifolia, but this has much narrower leaflets and ocreae with 
thinner walls. The specimens collected by Hallier are somewhat smaller than the 
type specimen from Sarawak, but otherwise very similar in the leaves and nature 
of the ocreae. On £ ocrea in Hallier’s specimens is 14 em. long, and 2°5 cm. broad. 
The sheathed stem is 15 mm. in diameter. i 
In Sarawak it receives the name of “Rotan Cheb," and the canes are much 
valued by the Dyaks; the strips obtained from them, being very strong, are used 
especially for basket work and on account of their extraordinary toughness for 
fastening axe heads to their handles. 
PLATE 71.—Korthalsia Cheb Becc.—The type specimen in Herb. Beccari. 
ss é 
6. KortHALsiAa ScortecHINnII Bece. in Hook. f. Fl. Brit. Ind. vi, 475. 
Description.—Rather slender. Sheathed stem 12-17 mm. in diameter. Leaves 
rather large, one cirriferous is about 45-60 cm. long in the pinniferous part. 
