C. pachystachys] ` BECCARI MONOGRAPH OF THE GENUS CALAMUS. 465 
sparsely scaly-furfuraceous, superficially striately veined; scarious-ciliolate and 
erose at the margin, prolonged at one side into a triangular acute point; 
involucrophorum almost entirely exsert from its own spathel and laterally attached 
at the base of the one above with a distinct axillary callus next to the axis 
shallow, concave, posticously acutely bidentate; involucre shallowly cupular slightly 
exceeding the involucrophorum, emarginate and acutely bidentate on Sia side of 
the neuter flower; areola of the neuter flower distinctly lunate, sharply bordered 
and sometimes somewhst concave and  subinvolucriform. Female flowers rather 
remote, about 5 mm, long, conic-ovoid, narrowing towards the summit; the calyx 
very shortly and acutely 3-toothed with a slightly ventricose tube, smooth, thickened 
and subcoriaceous at the base; the corolla as long as the calyx, divided a little 
beyond midway into 3 lanceolate acute segments, smooth or indistinctly striately 
veined outside ; staminal urceolum reaching to about the middle of the corolla, and 
crowned by 6 triangular short teeth; sterile anthers deeply sagittate; ovary shortly 
pedicellate; style short, thick, conie; stigmata small recurved. Fruit unknown, 
HaBrrAr.—Luzon in the Philippines, at Unisan in the Prov. of Tayabas, Vial 
No. 933 in Herb. Kew. 
‘Opservations.—Of this I have seen only the summit of a female spadix in flower 
and a portion of a leaf with 20 em, of rachis, probably from near the base. 
It appears related to C. pachystachys and C. didymocarpus ; distinguishable by its 
rachis densely prickly in its upper part and the narrow, ensiform, equidistant 
leaflets with 3 bristly costae above and naked beneath; apparently from the conspicuous 
development of the areola of the neuter flowers, sometimes two almost eqral flowers 
occur at one spathel. 
Prare 211.—Calamus Vidalianus Becc.— Portion of a leaf from near its base, seen 
from the upper surface; portions of the female spadix in flower.—From  Vidal's 
No. 933 in Herb. Kew. 
189. Carawus pacuysracuys Warb. (name only in Herb. Berol.). 
Description.—Robust, scandent. Stem . . . . » Leaf-sheadhs . . . . . Leaves rather 
me) terminating in a robust but apparently not very long 
cirrus ; this dreadfully armed with half-whorled or even solitary, stout, light-based and 
black-tipped claws ; petiole... + 4 rachis in its first portion biconvex, armed above. 
with rather robust, 5-6 mm. long, straight, erect spines and beneath along the middle 
with solitary, long-tipped claws (which leave a deep impression of their outline on 
the surface of the rachis) and with a few other spines at the sides; in the upper 
portion the rachis is bifaced and naked above, and beneath is usually armed 
along the middle with long and robust claws, which are solitary at first and then 
when nearer to the terminal cirrus more or less confluent, binate or ternate with 
solitary ones irregularly interposed amongst them ; leaflets rather numerous, inserted 
at a rather acute angle, equidistant, not very closely set (about 4 cm. apart), 
papyraceous, very rigid, glabrous, concolorous and shining on both surfaces, longitudinally 
plicate, narrowly lanceolate, somewhat alternate towards the base where plicate 
less distinct callus beneath inside the folding et their insertion ; 
large (not seen entire by 
- with à more or 
Any. Roy. Bor. Garp. CALCUTTA Vor. XI. 
