120 ANNALS OF THE ROYAL BOTANIC GARDEN, CALCUTTA. K. furcata. 
petiole, and bas 10-11 leaflets on each side; the petiole is elongate and thickish, 
about 1 cm. broad, flattish above, angular-convex below, with obtuse edges, and is 
armed on its upper surface and on the back, especially in its lower portion, with 
small prickles. The leaflets are as described above, but somewhat larger. attaining 
30-40 em. in length and 8-9 cm. in breadth. In very young plants, which how- 
ever also show the charaeteristie ocrea, the leaves have a petiole up to 70 cm. in 
length, very prickly all round, with very few leaflets on each side of the rhachis 
and a rather large terminal flabellum. Spadix unknown. 
Hanrrar.—South Borneo. The original specimen, upon which Blume ‘founded 
the species, was collected on the Dusson by Korthals. It has been found again 
recently at Bandjermasin by the collectors of the Botanical Garden of Buitenzorg 
(No. 48 in the Herbaria of Buitenzorg and Beccari). 
OBSERVATIONS.—It is a very imperfectly known species, but nevertheless well 
characterized by its large, very elongate, not very thickly coriaceous, sparingly 
prickly ocreae, and by the» cuneately oblanceolate leaflets, chalky-yellowish beneath 
and baying very sharply toothed margins. The specimens I received from Buitenzorg 
are all sterile, and bear non-cirriferous leaves, but are undoubtedly conspecific with 
the type of Blume, which I have seen. ! 
The variety gracilis Miq. of K. angustifolia Bl. is referable to K. echinometra 
Becc. (See observations on that species.) 
PraArE 73.—Korthalsia angustifolia Beze.—Leaf-sheath with its ocrea, and the base 
of a leaf; portion of a leaf near the end. Speeimen from a young plant with non- 
cirriferous leaves, in Herb. Beccari (No. 48 in Buitenzorg Herbarium). 
8. KonrHaLsiA FURCATA.—Becc. sp. n. 
DzscRIPTION.— Very. small. The naked stem is only 2 mm. in diameter and 
5-6 mm. with the sheaths on. JLeaf-sheaths very short, the leaves being very 
approximate and gradually passing into the petiole, polished, thickish on their backs 
where they are furnished with some short spines, or at times quite smooth, and 
disintegrated along the ventral aspect into a fibrous net. Ocreae relatively to the 
size of the plant conspicuous, inflated, ovate-elliptical or oblong, very similar to 
those of K. scaphigera, 20—25 mm. long, 8-10 mm. broad, smooth or furnished with 
some spinules near the acute apex. Leaves’ small, on the whole" 30-40 em. long ; 
the blade is very simple, very deeply forked with a cuneate acute base, or formed 
only of two segments, united to the extent of 2-4 cm. at their bases, and 
separating at a very acute angle, so as to leave between them a deep and narrow 
- V shaped sinus ; from the sinus springs a fine filament or rudimentary cirrus, at 
times up to 10-12 em. in length, and finely aculeolate ; the segments of the blade 
are broadly linear or almost all of a uniform breadth of 18-25 mm. and 25-30 
em. in length, sharply 3-5-costulate, distinctly discolourous, green and shiny above, 
ashy gray beneath, very slightly attenuate towards the apex, which is nearly 
truncate; irregularly and boldly toothed, the teeth being rather obtuse, and 
decreasing in steps along the outer margin the transverse veinlets are very fine 
‘and distinct on the upper surface and almost obsolete on the lower. ‘The petiole 
