D. pseudo-Ulur.] BECCARI. THE SPECIES OF CALAMUS.—SUPPLEMENT. 133 
The specimens seen by me are rather incomplete, and consist of female spadices 
with young flowers and leaves of young plants. ©. Ulur together with C. Semoi may 
be placed in a special division of group XV, characterised by the secondary 
spathes, which at first enwrap the spikelets, and then spread out and become 
auriculiform. 
SuPPL. Prarg 76.—Calamus Ulur Becc. Portion of a sheathed stem with an 
entire female spadix in flower; portion of a sheathed stem and one leaf (wanting its 
terminal cirrus’ from a young plant. From Heyne's type-specimen in the Buitenzorg 
Herbarium. | 
187d. CALAMUS PSEUDO-ULUR Bece. n. sp. 
Dzscnierrow.—Seandent, rather slender. Sheathed stem 1:5—2 em. in diameter, Leaf- 
sheaths strongly gibbous-plicate above, obliquely truncate at the mouths, armed sparsely 
with solitary, very unequal, elongate-triangular spines, often obliquely inserted, and 
more or less ascendent; the largest spines are 1-2 əm, long. and have a broad 
base which, at times, is 10-12 mm. broad, is more or less extended right and 
left and is considerably concave underneath; in the young shoots the spines are 
hairy-fringed on the margins, erect and appressed on the surface of the sheaths; 
at times the spines are few, or entirely wanting or are represented by some super- 
ficial or almost obsolete, very slender, scabridulous ridges, though occasionally broad 
spines and a few rudimentary ridges are present together; the surface of the sheaths 
is greenish, at first very thinly puberulous—furfuraceous, later glabrescent, dull and 
very finely striate longitudinally; in some of the specimens, which apparently are 
from an adult but not yet fertile plant a rudimentary flagellum (or rather an abor- 
tive spadix) springs laterally from near the mouth of the sheaths: it is very slender, 
flattened, usually smooth, yet prickly at times and 5-6 cm. long. Ocrea axillary, short, 
liguliform: it has the upper part and the margins membranous, later dry and deciduous. 
Leaves rather elongate, 50-90 cm. long in the pinniferous part, with 13-15 very inequi- 
distant leaflets on each side, and terminating in a rather elongate cirrus; petiole, in 
leaves of adult plants, very short, 3-4 cm. long, plano-convex, smooth or sparingly spinous 
with acute edges; in leaves of younger plants the petiole is rather elongate, 15-20 cm. 
long, and except close to its base is plano-convex, has acute edges, and is mure or 
less armed with minute prickles; the rachis is deeply and broadly grooved along 
the sides in its lower part, and has an acute, salient, smooth angle with 
slightly concave . side faces on the upper surface: underneath it is convex and 
irregularly armed with one line or frequently with 3 lines of solitary claws; 
the cirrus is very densely set with small, very sharp, solitary (never digitate or 
half-whorleu) claws. Leaflets irregularly aggregated on each side of the rachis into 
5-6 distant groups usually of 2-4 leaflets (1-4 cm. apart); the leaflets are papy- 
raceous, of a rather dull green and almost concolorous on both surfaces, are plicate- 
5—pluri-costulate, elongate-lanceolate, broadest about their middle, and thence taper 
almost equally downwards to an acute base and upwards and gradually to a 
finely acuminate and at the sides bristly tip; the costae are slender, sharp, and 
smooth on both surfaces: they are usually only five in number, but frequently 
several secondary costae are present (at times as many as 10-12), which are as 
strong as the primary ones; transverse veinlets very conspicuous and prominent 
on both surfaces; the lower surface is frequently very minutely scabrid; margins 
