C. rostratus, CERATOLOBUR. | 11 
base of the corolla, triangular subulate in their free part, and having sagittate 
sterile anthers; ovary globose, covered with large suborbicular fimbriate scales ; 
stigmas sessile, elongate, thick, spreading and recurved. Neuter flowers differing 
considerably from the female, and very much like the male ones, being only a 
little larger than these (6 mm. long) and having sterile, very narrowly sagittate 
anthers. Fruiting perianth explanate. Fruit, when thoroughly mature, globose, 
15 mm. in diameter, the apex very briefly conically beaked and surmounted by the 
very small remains of the stigmas; scales in 12 longitudinal series. rhomboidal, 
broader than long with obtuse’ apex, strongly convex, narrowly grooved along the 
centre; of a uniform dark reddish brown colour when dry, orange red when fresh 
with the margins smooth. Seed globular, 1 cm. in diameter, covered with a thin 
. adherent integument, minutely wrinkled when dry; the chalazal fovea deep, 
sulciform, lateral; albumen long, not deeply ruminate. Embryo basal. 
Haprrar.—The Malay Peninsula. In dense hilly jungle at Larut in Perak 
(King’s collector Nos. 5589 and 2856 in Herb. Cale.—female plant and 2547— 
male plant)—In the same district coll by ZL. Wray Jun. (Herb. Mus. Perak 
No. 2869.) 
OnsERYATIONS.—It is a smaller plant than C. discolor. It is characterized by 
the sheaths covered with minute seriate rigid spinuliform hairs, leaving after 
their fall numerous approximate interrupted muricate ridges; by the pinniferous 
part having few leaflets, subglaucescent, but not mealy beneath, the lowesi being 
the largest; by the spathe moderately large, at first mealy pulverulent, later 
glabrous, and with trigonous shortly produced apex; by the neuter flowers not 
resembling the female but being very similar to the male ones; by the globular 
fruit borne on a quite explanate perianth. 
PrarE 5.—Ceratolobus Kingianus Becc. Leaf-sheath with’ a male spadix (a 
portion of the. wall of the spathe removed to show the male panicle), and an 
entire leaf. From No. 5589 in the Calcutta Horbarium. 
PLate 6.—Leaf-sheath with a female spadix (half the wall of the spathe 
removed to show the female panicle with young fruits inside); from No. 2856 
Herb. Cale. An entire female spadix; from No. 5589 Herb. Cale. One mature 
fruit. and one seed seen from the side of the chalazal fovea; from No. 5589 in 
the Caleutta Herbarium. 
5. CERATOLOBUS ROSTRATUS Becc. 
| 
Korthalsia rostrata Bl. Rumphia, ii, 168; Mart. Hist. Nat. Palm., iii, 211; 
Miq. Fl. Ind. Bat., iii, 75, and De Palm. Arc. Ind. 267 Walp., 
Ann., ii, 492; Becc. Malesia, ii, 76. 
Ceratolobus Hallierianus Bece. MSS. name in Herb. Hort. Bot. Bogor. ; 
Heyne, Nuttige Pl. Neder l. Ind. (1913), 93. : 
Description.—Slender or of middling size. The upper part of the sheathed stem 
in adult fertile plants 15—20 mm. in diameter.  Leaf-sheaths gibbous above, more or 
less distinctly boldly striate or sub-costulate longitudinally. covered with a tobacco- 
coloured scurf and armed with very unequal spines, some scattered or at times 
ANN. Roy. BOT. GARD., CALCUTTA, VOL. XII. 
