84 ANNALS OF THE ROYAL BOTANIC GARDEN, CALCUTTA. [D, monticolus. 
ovate-pyramidate, rather acute, 5 mm. long; the calyx more or less distinctly 3- 
dentate, the corolla not twice as long as the calyx. Fruiting perianth explanate, 
Fruit globular, 2 cm. in diameter, sometimes very slightly turbinate or with its vertex 
slightly depressed and minutely beaked, and very slightly narrowing towards the base; 
scales in 15 longitudinal series, shining, deeply ‘channelled along the centre, with 
a rather elongate triangular point, straw-yellow with a dark marginal line. Seed 
subreniform (broader than high) and distinctly depressed, 14-15 mm. long, ll mm. 
high, 9 mm. thick; embryo basal. 
HanrrAT.—I discovered this species at about 1800 m. altitude on Mount 
Singalang in the Province of Padang in West Sumatra, in June 1878 (P. Sum. 
No. 291). 
Oxservations.—It is easily recognisable amongst the species of the group by its 
nodding long stalked spadices, persistent spathes, and many other peculiarities. It 
seems to be more closely related to the species of the group D. melanochaetes than 
to D. Sepal and its allied species. 
Prate 28.—Daemonorops  singalanus Bece. Portion of the stem with male 
spadiees; spadix with quite mature fruits, From P. Sum. No. 291 in Herb. Beccari. 
25. DarMoNoRoPs monticonus Mart. Hist. Nat. Palm. iii, 328, pl. 175, f. V; 
Miq. Fl. Ind. Bat. iii, 90; Walp. Ann. v, 827 and iii, 477; Hook. 
f. Fl Brit. Ind. vi, 465; Bece. in Rec. Bot. Surv, Ind. i, 221. 
Calamus  monüwolus Griff. in Cale. Journ. Nat. Hist. v, 90, and Palms 
Brit. India, 97, pl. CCXIV. A. C. ; H. Wendl, in Kerch. Palm. 291. 
Description.—Erect, 2:5 m. high. Sheathed stem about 2:5 cm. in diameter. Leaf- 
sheaths armed with long, deflexed, flat, subulate, black thorns, disposed in lines but indivi- 
dually distinct ; surface dark-brown from adherent scurf; the mouth obliquely truncate, 
almost spineless. Upper leaves alone cirriferous; petiole about 25 cm. long, armed with 
a dorsal row of stout claws and along the margins with long, generally deflexed spines ; 
the rachis convex and armed with palmate claws on the lower surface, unarmed and 
with a salient angle on the upper; the cirrus itself 45 em. long; leaflets alternate or 
often subopposite, rather numerous and approximats, equidistant, linear, 25-27 cm. 
long, 10-15 mm. broad, subulately acuminate to a bristly tip, the central and two 
lateral veins bristly on the upper surface, smooth on the lower except that the mid- 
costa bears towards the apex numerous small bristles; margins bristly. Spadices 
slightly supra-axillary, approximate towards the apex of the plant but not very closely, 
the leaf sheaths not being excessively short. Male spadiz . . . . Female spatix erect, 
supported on a short peduncular part, fusiform before flowering, 35-40 cm. long on 
the whole; the outer spathe covered when young. with black scurf, acutely two-keeled, 
armed between and along the keels with scattered, weak, long, subulate, deflexed, 
flat, black spines ; the beak about as long as the body, armed, except towards the apex, 
with not many, very long, deflexed subulate, sub-bristly spines; partial inflorescences 4—5 ; 
the internodes not distinctly tumescent at the junctures, rather slender, the lowest 
2-3 cm, long; secondary spathes amplectent, short, acute or subulate at one side; the 
‘branches bearing few spikelets, the latter with a sinuous axis, 3-5 cm. long, and with 
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