K. zippelü. - KORTHALSIA. 145 
K. flagellaris Miq. The leaflets, very narrow. and long in half-grown plants, 
become gradually shorter and more distinetly oblong cuneate higher up, as the 
plant approaches the fruiting stage; at that time the leaves. nearer the  inflores- 
sence become so different from those of the lower part of stem as to appear to 
belong to a different species. The inflorescence is rather large, with spreading 
branches and distinctly tomentose spikes. It is apparently a rather common plant, 
but has very seldom been found in a fertile condition, and ‘never with mature 
fruit, probably because the canes, as is the case with other Korthalsias, are much 
used by the natives, and cut down before they attain the flowering stage. 
PLate 94.—Korthalsia flagellaris M/g.— Terminal part of an infloresence ; one of 
the uppermost leaves of the fertile plant. From No. 3127 in the Perak Herbarium. 
PLare 95.—Korthalsia flagellaris M/g.—Portion of the sheathed stem and an 
entire leaf from a not yet fertile plant (on the left side of the plate). This 
is the type of K. rubiginosa P. B. No. 1912 in Herb. Beccari. Another portion of 
a sheathed.stem of a plant older than the preceding, dnd portion of a leaf near 
the end (on the right-hand side of the plate); from No. 47 of Buitenzorg Herbarium 
in Herb. Beccari. 
PLate 96.—Korthalsia flagellaris Miq.—Lower part of a young plant with 
primordial leaves; from P. B. No. 1912 in Herb. Beccari. 
23. KonrHaLsiA ZippeLii Bl. Rumphia, ii, 171, t. 130, f. 2; Mart. Hist. Nat. 
Palm. iii, 211,343; Miq. Fl. Ind. Bat. iii, 76 and De Palm. Arc. Ind. 
26;  Walpers Ann. iii, 492; Bece. Malesia i, 87 and i, 69; 
Hemsley in Voy. Challenger, Bot. i, III, 225 ; K. Sch. et Lauterbach, 
Nachtr. Fl. Deut. Schutzg. (1905) 61. 
Ceratolobus Zippelii BL ew 130, EY 
C. plicatus Zipp. ex Bl. l. c. 
Ceratolobus sp. Bece. Malesia, ii, 69 (Osserv.). 
Descrirtion.—A large species. Sheathed stem 2—3 cm. in diameter. Leùf-sheaths 
sparingly armed with short straight spines especially on their ventral side near the 
insertion of the petiole, also very thinly covered when young with a fugacious 
powdery indumentum, ultimately becoming glabrous.  Ocrec tubular, 20 cm. or more 
long, rather closely armed with short straight spines especially in their basal part, 
which is more or less of a coriaceous structure, whereas the remainder is thinly 
membranous, lacerated and soon broken up into filaments. Leaves large, one from 
the intermediate part of an adult, but not yet flowering plant has a petiole 40 cm. 
long, the pinniferous portion measures 1 m. in length, is prolonged into a robust 
cirrus about as long, and bears 7 leaflets on each side of the rhachis; the petiole 
is somewhat flattened, about 1 cm. broad, convex and smooth beneath, prickly on 
the edges and occasionally also on its upper flattish surface; it is, as well as the 
rhachis, covered with a very thin, whitish, fugaeious indumentum ; the  rhachis 
is armed with scattered single claws; the cirrus is very irregularly but closely 
ANN. Roy. Bor. GARD., CALCUTTA, VOL. XII. 
