K. angustifolia. KORTHALSIA, 119 
Leaf-sheaths entirely enveloped by the ocreae, except in a small upper portion which 
is armed with scattered, very short subtuberculiform spines. Ocreae very large, 
terete, and! closely sheathing in their basal (3-4 cm. long) part, otherwise somewhat 
inflated and elongate-cymbiform, the inflated part is 12-18 cm. long, and 2°5—3 em. 
broad, obtuse at apex, unclosed above on the inner side, otherwise completely 
clasping the following sheath, thinly coriaceous, glabrous, armed with scattered, 
| Petiole flattened, slightly 
biconvex or flattish above and convex below, armed irregularly with small claws 
thickish, horizontal, short (6-7 mm. long at most) spines ; 
on the edges, and more or less also below, in one specimen 8 cm. long, in 
another 22 cm.; Rhachis armed with scattered single claws ; Cirrus slender, irre- 
gularly clawed. Leaflets rather numerous, 10-11 on each side of the rhachis, equi- 
distant, alternate or subopposite, a few of the lowermost more approximate than 
the others, papyraceous, green above and whitish beneath, cuneately elongate- 
oblanceolate, 5-7-nerved, the upper ones acutely toothed in their upper margins and 
` very acuminate, 35-40 cm. long, 4-5 cm. broad; the lower smaller, somewhat 
attenuate above, toothed and very irregularly only at the apex. Spadix unknown. 
Hanrrar.—In the Malay Peninsula at Perak; collected only by Father Scor- 
techini. Native name ‘“Rotang Udang.” This is the vernacular name for several 
species of Korthalsía with inflated elongate ocreae, in which the Malays see a 
fancied resemblance to the * Udang? the Malay name for a Prawn. 
OssERvATIONSs.— This species is characterized by its very large elongate ocreae, 
armed only with short prickles, and by its numerous narrow discolourous leaflets. 
The ocreae are very similar to those of K. Cheb, but have a much thinner 
texture; the leaves also have narrower leaflets. 
PLate 72.—Korthalsia Scortechinii .Becc.—' The type specimen in Herb. ' Beccari. 
7. KorrHaLsia ancustiroLIA Bl. Rumphia, ii, 172; ‘Mart. Hist. Nat. Palm. ill, 
211; Mig. FI. Ind. Bat. ii, 77; Becc. Malesia ii, 70 (excl. K. flagel- 
pares: Mit) p. 20 t LXIV, E 1 X oy 
DescrIPTION.—Of moderate (or relatively large?) size. Sheathed stem 2°5 cm. in 
diameter, (or probably more in full grown plants). Leaf-sheaths thinly and fuga- 
ciously rusty-furfuraceous and somewhat whitish pruinose, armed rather densely 
on their backs, and scantily on the ventral aspect, with scattered straight spines, 
3-10 mm. long. Ocreae inflated, not very thickly. coriaceous, elongate-eymbiform 
or fusiform, narrowing above to a bluntish apex, 15-20 em. long, 2-2°5 cm. 
broad, also slightly pruinose and fugaciously scantily rusty-furfuraceous, thinly 
coriaceous, very sparingly armed with a few short spines. The leaves of the adult 
plants are described by Blume as cirriferous, 2-2°5 m. long including the cirrus, 
and bearing 15-18 leaflets; the latter are distinctly ansate, 20-30 cm. long, 
25-4 em. wide, cuneately-oblanceolate. very acuminate, 7-10-nerved, almost 
shiny above, and covered beneath with a thin coating of yellowish-white or almost 
chalky indumentum ; the upper margins are sharply toothed, and the teeth subulate— 
aristate. The leaves of young plants are non-cirriferous, and end in a flabellate 
leaflet ; the largest of these leaves seen by me measures 1:5-1'8 m. including the 
