76 AWNALS OP THE EOTAL BOTANIC GABDEiT, CALCUTTA. [D. Treubianus.
closely obliquely inserteil. Leaves very long and comparatively delicate, 1"8 m. long
in the piuniferous part and terminating in a not very long, slender and not very
regularly clawed cirrus; the petiole has a very clean, almost polished, surface and is
35 cm. long, 12 mm. broad, plano-convex, smooth on the upper surface, with very
sharp margins, armed exactly on the edges with small, very sharp, ascendent prickles,
and beneath those with a few straight., robust, horizontal, 15-20 mm. long spines;
the lower surface is sparsely prickly near the base and armed with a few long
straight spines along the centre; the rachis on the upper surface is flat in its first
portion and very narrowly channelled on each side, where are inserted the leaflets,
higher up is convex and from the middle, in the upper surface, the convexity is
transformed into a salient angle, which is very acute only near the apex, and is more
or less spinulous throughout; on the lower surface the rachis is ratber closely armed
immediately from its bass with ternate, very sharp claws, which become o-uate
higher up. LeaflsU numerous, equidistant, not very closely set, 2-2'5 cm. apart,
green and dull OQ both surfaces, thinly papyraceous, linear, very narrow, 25-30 cm.
long, 1 cm. \vide, broadest a little above the base and thence very gradually acuminate
to an extremely fine filiform tip ; the mid-costa and one rather distinct nerve on
each side of it furnished with rather long bristles on the upper surface; on the
lower the mid-costa alone closely bristly spinulous; the margins minutely closely and
appressedly spinulous. Male spadu erect, exactly fusiform, very gradually narrowing
above into a long beak and also gradually taueriug into a very slender base which
is supported by a pedicellar part, the pedicel being 15-20 mm. long, 6-7 mm. broad,
not or slightly prickly, flattened and acutely two-edged; the entire length of the
unopened apadix is 40-55 cm., while the flowering panicle is 20—28 cm., with 5-6
partial inflorescences; outer spathe very narrowly cymbiform, acutely two-keeled,
sparingly armed with scattered, very narrowly acicular or snbfiliform, flexible, 2-4 cm.
long spines, those at the base of the beak being the longest; the beak itself about
as long as the body; the other spathes are all unarmed; the axial parts of the spadix
almost glabrous even before the opening of the spathes; the inteniode between the
first and the second spathes ^.forming an additional peduncular part to the flowering
axis) ia slender, 2-3 cm. in length, 4 mm. in width, flattened with acute edges;
partial inflorescences 6-7 cm. long, composed of about ten branchlets, each of them
carrying 3-4 spikelets on each side; the lowest of these, the largest, 10-12 mm. long
with 3-4 flowers on each side, their axis slightly zig-zag sinuous, with very short and
almost glabrous spaces between the flowers; spathes bracteiform, amplectent, produced
externally into a broadly triangular limb, of which the rather obtuse point does not
exceed the involucre; the latter cupular, truncate; obsoletely 2-dfintate on the
posticous side, with a small but distinct callus at its axilla. Male flowers 5 mm. long,
oblong, obsoletely 3-gonous, very slightly narrowing towards an obtuse apex; the
calyx cupiilar-campanulate, very superficially 3-tooihed; the corolla almost three times
as long as the calyx. Female spadix Fruit.
HABITAT. I have received this species from the Botanic G-arden of Buitenzorg,
where it is cidtivated with the label Daemonorops Schwenck " without any special
reference to its native country. The species is gratefully dedicated to the late Dr.
Melchiot Treub, who had so largely contributed to my studies, supplying me with
splendid specimens of the species cultivated in the garden under his direction.
D. Sepal.'] BECC4RI, THE SPECIES OF DAEMONOROPS. 77
OBSERVATIONS.—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 described
above. D. Treubianus is distinguished in the group of D. nielanochaetea chiefly
b y 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. Jertkimianm and gradually nurrow 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 verv lonff
at the base of the beak. ^
From a specimen in Herb. Beccari,
and in
PLATE 23. Daemonorops Treubianus Becc.
cultivated at Buitenzorg.
20. DAEMONOROPS SEPAL Becc. in Hook f. Fl. Brit. Ind. vi,
Rec. Bot. Surv. Ind. ii, 220.
DESCRiPTioN.-Scandent, 6-9 m. in length, rather dendor. Shmthed stem 12-20 mm
in diameter. Leaf-shcaths 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 iuserted in interrupted series. Leaves (those of upper and fertile part of the
plant) comparatively not very large, O'75-l m. long in the pinniferous
part and terminating in a not very Jong 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.nat6 claws.
Leaflets comparatively not very numerous (about 35-40 on each side) equidistant, not
very closely set, 20-25 nnn. apart, thinly papyraceous, rigidulous, green on both
surfaces, linear or linear-lanceolate, broadest a little below the middle and thence narrowing
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 ram. in width) and therefrom linear sub-lanceolate. Male
spadix 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
cm. long, scattered or subseriate, acicular spines ; inner spathes only four (always ?)