632 
BECCARI. 
and very rigid, very densely beset by very unequal, horizontal, and often 
subseriate, or confluent spines, otherwise similar to those occurring on 
the leaf -sheaths. Leaves 1.2 m long in the pinniferous part, and termi- 
nated by a robust and strongly clawed cirrus; leaflets linear, very nu- 
merous and closely set, equidistant, naked underneath, and furnished 
above on the mid-costa, and on one nerve on each side of it, with a 
few, but relatively robust, subspiny bristles; the margins are rather 
closely and appressedly spinulous; the petiole, which is 15 cm long, and 
the rachis, are both strongly armed above with unequal spines ; the medial 
leaflets are 19 to 20 cm long, and 8 to 10 mm broad. Male spadix about 
40 cm in length, narrowing gradually to a tail-like tip, with 7 or 8 tubular, 
gradually diminishing, shortly imbricate, primary spathes. Male partial 
inflorescences short and dense. 
The type specimen of this variety (a male plant in the Kew Herbarium) was 
collected by .4. Loher in May, 1905, on the summit of Mount Batay at 1,380 m 
elevation, near Montalban, Province of Rizal, Luzon, (No. 7 085 in Herb. Kew.). 
The variety differs from the type by its leaf-sheaths being very densely spinous, 
by its large, very rigid and also densely spinous ligule, and by its very narrow 
3-nerved leaflets, the 3 nerves bearing bristles on the upper surface. In the type 
the ligule is membranaceous, brittle, and much less spinous, and the leaflets are 
bristly only on the mid-costa above, while the hairs on the margins are more 
spreading. 
Calamus dimorphacanthus var. zambalensis Becc. var. nov. 
A more robust plant than the type. Sheathed stem 4 cm in diameter, 
and perhaps at times more; naked canes 2.5 cm in diameter, with a 
light-straw-colored very polished surface ; leaf-slieath very densely spinous 
as in the other forms; ligule not so long as in the type, densely covered 
with spiculas. Petiole robust and short, very densely spinous ; the leaflets 
are very numerous, very closely set, rigid, or papery-subcoriaceous, nar- 
rowly lanceolate; the medial ones 20 cm long or thereabouts, and 15 to 
20 mm broad, naked beneath, and furnished above on the mid-costa 
with rigid, subspiny bristles; the side nerves are smooth; the margins are 
conspicuously ciliate with spreading spinules; the cirrus is, as usual in 
this species, robust and armed with half-wliorls of strong and tumescent 
claws. Fruiting spadix 55 cm long in one specimen; primary spathes 
rather densely spinulous; partial inflorescences short, having few branches 
and these with few spikelets, which are rigid and thickish; spathels and 
involucrophore as in the other forms; involucre distinctly discoid, orbic- 
rdar, flat or slightly convex. Fruit larger than in type, globose-ovoid, 
13 mm long, about 10 mm broad, borne on a short but distinctly pedicel- 
liform, cylindraceous, fruiting perianth; scales shining, arranged in 15 
longitudinal series, slightly furrowed along the middle, brown with a 
darker uniform margin all around, the point blunt. 
Luzon, Province of Zambales, Mount Tapulao, For. Bur. 8^12 Curran d 
Merritt , December, 1907, on exposed peaks in the elfinwood, altitude about 2,000 
