NOTES ON PHILIPPINE PALMS, II. 
631 
back, terminated by a short triangular point; the lowest partial inflo- 
rescences are the largest, they are 7 to 8 cm long with only 3 or 4 spikelets 
on each side; secondary spathes infundibuliform, truncate at the mouth 
and slightly prolonged at one side, furnished at the summit with a few 
long stiff bristles; spikelets short and rather thick, 2 to 3.5 cm long, with 
two series of 6 or 7, assurgent, not flatly bifarious flowers; spathels very 
shortly infundibuliform, embracing the involucre, involucrophores and 
involucre (which are very much alike) very shallowly cupular and 
orbicular; areola of the neuter flower depressedly lunate and sharply 
bordered. Female flowers conical, 5 mm long and 5 mm broad; the form 
of the flower being given by the calyx, which has a very broad, flat, callous 
base, and a very contracted, shortly 3-toothed mouth; the teeth about as 
long as the small segments of the corolla; stigma small, triangular, 
spreading. 
Luzon, Province of Laguna, Mount Banajao, Loher 7 088, February, 1906, 
( Herb. Kew. ) . N. v. saba-ang. 
A very singular species, easily distinguishable by its short, straight, rigid 
female spadix, with the spathes fringed at the mouth by numerous stiff subspiny 
bristles and also by its large leaves and lanceolate leaflets. It would seem by 
its short spadix, with its gradually decreasing subinflated spathes, to belong to 
the group of C. siphonospathus, but it has a quite peculiar habit. The spadix 
is also very much like that of G. dimorphacanthus, but the leaves are quite 
different, and are very similar to those of G. ornatus. The spadix was detached, 
nevertheless I entertain little doubt but that it belonged to the same plant as 
the leaves described above. 
Calamus dimorphacanthus Becc. in Records Bot. Surv. India 2: 214 et in 
Ann. Bot. Gard. Calcutta 1 1 : tab. 219. 
Specimens corresponding to the type were collected by A. D. E. Elmer on Mount 
Santo Tomas (Tonglon), Province of Benguet, Luzon, in May, 1904, No. 6238. 
In these specimens the spadix bears almost mature fruits not differing 
from those of the type; but the partial inflorescences axe more robust, the 
largest being 12 cm in length, and with the lowest spikelets forked; the 
primary spathes are fugaciously rusty-furfuraceous, of these the lower 
are more or less prickly, the upper smooth. The fruits are 8 to 10 mm 
long. The leaflets are narrow, and are furnished with rather long bristles 
on the mid-costa above; their margins are ciliate with rather spreading 
hairs. C. dimorphacanthus appears to be a very polymorphous species, 
including several distinct varieties or subspecies. 
Calamus dimorphacanthus var. montalbanicus Becc. var. nov. 
The specimen upon which I have established this variety is remarkable 
for the extraordinary spinescence of the leaf-sheaths and especially of 
the ocrea, which moreover, is extraordinarily developed. The sheathed 
stem is 3 cm in diameter ; the leaf-slieaths are densely armed with laminate 
flexible, schistaceous or almost black, unequal spines, the largest being 
20 to 25 mm long ; the ligule is 15 cm long (in one specimen), papyraceous 
