C. microcarpus | BECCARL MONOGRAPH OF THE GENUS CALAMUS. 477 
CALAMUS SIPHONOSPATHUS var. POLYLEPIS Becc. in Webbia, p. 74. 
DrscRrPTION.— Leaves with leaflets having 3 bristly costae above; primary spathes 
more or less prickly; partial inflorescences very densely flowered. Fruit scales in 18 
longitudinal series. 
Hasirat.—The Philippine Islands, S. Isidro; Prov. Morong (Vidal No. 4068 in Herb. 
Beccari). 
OBSERVATIONS.—Vidal’s specimens have equidistant very narrow leaflets 10-12 mm, 
broad with not very long bristles on 3 costae above and on the mid-costa beneath; the 
female spadix has very dense and very approximate partial inflorescences with the 
primary spathes very broad of which the lower ones are prickly on the back and 
the upper smooth. The fruit is subovoid, very shortly mammillate, with scales in 
18 longitudinal series. 
Prate 216.—Calamus siphonospathus var. polylepis Bece. Portion of a leaf and 
female spadix with young fruit from Vidals No. 4068 in Herb. Bece,; small portion of 
a branchlet with male flowers (upper figure) from Vidal’s No. 931 (Herb. Kew); 
branchlet with female flowers (lower figure) from Vidal’s No. 3961 (Herb. Kew). It is 
not certain that Nos. 931 and 3961 belong to the variety polylepis. 
186. CALAMUS  MicROCARPUS Becc. in Rec. Bot, Surv. Ind. ii, 218, et in 
Webbia, 355. 
Description.—Scandent, of moderate size. Sheathed stem 2-25 cm.. in diam. 
Leaf-sheaths gibbous above, armed with very thinly laminar, straight, elongate, often 
confluent spines. Ocrea large, elongate (in one specimen 6 cm. long) very 
densely armed with thinly laminar, ascendent, 1-2 ecm. long, subulate spines 
similar to those which cover the sheaths. eaves rather large, 1:5 m, long in the 
pinniferous part (in one specimen) and terminating in a strongly clawed cirrus ; 
petiole elongate (always?), biconvex, spinous all round, and chiefly at the margins; 
rachis more or less bifaced and prickly above, armed beneath along the middle with 
claws which are solitary at first and 5-nate-digitate towards the summit and in the 
cirrus; leaflets numerous, approximate in groups of 3-7, 5-15 cm. apart on each 
side of the rachis, equidistant and flatly set (not pointing different ways) in each 
group, rather firmly papyraceous, 20-30 cm. long, 12-20 mm. broad, linear- 
lanceolate, somewhat narrowed towards the base, gradually acuminate at the summit, 
green on both surfaces, 3- or sub-5-costulate, vize with the mid-costa rather acute and 
one or sometimes two weaker nerves on each side of it, 3 of them or all furnished 
with spinules or rigid bristles above; underneath only the mid-costa sparingly bristly, 
and the side-nerves slender and usually naked, or very exceptionally sparingly bristly ; 
margins finely spinulous-serrate. Male spadiz . . . . . Female spadiz strict, ; elongate, 
about 50 em. long, partially supra-decompound and with 6-7 gradually diminishing 
partial inflorescences; primary spathes tubular very loosely sheathing, subinflated or 
enlarged above; the first slightly flattened, the upper ones rather approximate, suddenly 
narrowing towards the base; the lower ones 10-12 cm. long, sprinkled with very 
small prickles; the upper ones gradually smaller and often smooth, thinly coriaceous 
