D. Sepal.) BECCARI. THE SPECIES OF DAEMONOROPS. 77 
Osservations.—I have derived my description from the upper part of a not 
yet fertile plant and from some detached male spadices. Probably the leaves of 
the upper part of a completely adult plant have a shorter petiole than those des- 
cribed above. D. Treubianus is distinguished in the group of D. melanochaetes chiefly 
by its leaves with long plano-convex (not prickly above) petioles; by its very narrow 
not very closely set leaflets; by its erect, distinctly pedicellate, elongate, fusiform 
spadices, which resemble those of D. Jenkinsianus and gradually narrow above into 
a beak about as long; as the body and below to a narrow though rigid base 
and by the outer spathe sparingly armed with filiform spines that are very long 
at the base of tke beak. 
Prate 23.  Daemonorops Treubianus Bece. From a specimen in Herb. Beccari, 
cultivated at Buitenzorg. 
20. Daemonorops Sepan Becc. in Hook f. Fl. Brit. Ind. vi, 469, and in 
Rec. Bot. Surv. Ind. ii, 220. 
DzscRiPTION.— Seandent, 6-9 m. in length, rather slender. Sheathed stem 12-20 mm. 
in diameter.  Leaf-sheaíhs slightly gibbous above, covered with a dark tobacco-coloured 
scurf, densely and irregularly armed with narrowly laminar, elastic, schistaceous, 
shining, 10-25 mm. long spines, pointing in different directions, scattered or even 
obliquely inserted in interrupted series. Leaves (those of upper and fertile part of the 
plant) comparatively not very large, 075-1 m. long in the pinniferous 
part and terminating in a not very long cirrus; petiole 10-20 cm. long, 
7-9 mm. wide, plano-convex at the base, flattened and biconvex above, smooth or 
more or less prickly on the upper surface; the margins acute, usually armed with 
short, straight spines; on the under surface variously armed along the centre with 
solitary or ternate small claws or even smooth; the rachis flat at the base on the 
upper surface with slightly excavate side faces, which very soon converge to form a 
acute, smooth, salient angle with flat side faces; on the lower surface armed along the 
centre with at first solitary, then ternate, and only nearly the apex 5-nate claws, 
Leaflets comparatively not very numerous (about 35-40 on each side) equidistant, not 
very closely set, 20-25 mm. apart, thinly papyraceous, rigidulous, green on both 
surfaces, linear or linear-lanceolate, broadest a little below the middle and thence nar- 
rowing down to a rather acute base and upwards very gradually acuminate to a very 
fine filiform and bristly tip, subtricostulate, or with a rather acute mid-costa and 
one nerve on each side of it slightly stronger than the other secondary nerves, 
all three carrying short, blackish bristles on the upper surface; on the undersurface 
the mid-costa alone closely and minutely bristly throughout; margins minutely and 
very appressedly spinulous; transverse veinlets distinct, very slender; the leaflets a 
little above the base are the longest and the narrowest, 25-35 cm. long, 10-11 
mm. broad, and almost linear; the upper ones are shorter and broadest in their 
intermediate part (up to 15 mm. in width) and therefrom linear sub-lanceolate. Male 
spadiz erect, subsessile or stalked with a pedicellar part 2 cm, long, fusiform before 
flowering, entire length 25-30 cm., gradually narrowing into a not very long beak 
which is about one-half or one-fourth of the length of the body; outer spathe 
obsoletely 2-keeled, not deeply cymbiform, armed with very narrowly laminar, 1-2 
em, long, scattered or subseriate, acicular spines; inner spathes only four (always ?) 
