348 
The Philippine Journal of Science 
1919 
soid, 10 to 11 mm long (including the perianth), 5 mm 
thick; scales in fourteen or fifteen longitudinal series. 
C. siphonospathus van. batanensis. 
e^ Leaf-sheaths very densely armed, at least in their upper part, 
with ascending unequal spines. 
p. Leaf-sheaths armed with elongate, ascending, very narrowly 
laminar spines; the elongate ligula densely armed with 
similar spines; petiole and rachis armed irregularly with 
unequal spines; leaflets with rigid bristles on the midrib 
alone above, smooth underneath; margins conspicuously 
spinulous-ciliate; fruit small, ovoid-ellipsoid, 8 to 9 mm 
long, 5 mm thick; fruiting perianth campanulate, sub- 
pedicelliform 33. C. dimorphacanthus (forma typica). 
Leaf-sheaths armed with unequal long spines, some of 
which are very slender and criniform, others laminar; 
the very elongate ocrea is also armed with similar 
spines; leaflets with rigid bristles on three nerves above 
and smooth underneath; margins closely and finely 
ciliate-spinulous. 
C. dimorphacanthus var. montalbanicus. 
Leaf-sheaths very densely armed, in their upper part mostly, 
with very rigid subcriniform spines; leaflets very rigid, 
furnished on the upper surface with distant coarse 
bristles on the midrib alone, the lower surface smooth, 
margins coarsely spinulous; fruit larger than in the 
species, globose, 13 mm long, 10 mm thick; supported 
by the short terete pedicelliform perianth. 
C. dimorphacanthus var. zambalensis. 
d‘. Fruit covered by strongly gibbous scales, very deeply grooved 
along the center, and with very appressed points, 
e^. Fruit ovoid or subglobose-ovoid, 8 to 12 mm long, including 
the short, terete, supporting perianth, and 5 to 8 mm thick, 
obtusely beaked. 
f. Leaflets numerous, elongate, 10 to 15 mm wide; leaves with 
subequidistant leaflets, at least in their lower part, and 
more or less grooved above. 
34. C. microcarpus (forma typica). 
f. Very slender; leaflets very narrow, not numerous, and very 
inequidistant; spadix small. .C. microcarpus var. diminutus. 
e‘. Fruit ovoid or subovoid, minutely beaked, 17 mm long, includ- 
ing the short, terete, pedicelliform perianth, and 12 mm 
through 35. C. halconensis. 
c^. The primary spathes at first enveloping the partial inflorescences, 
then splitting longitudinally and opening flat, becoming laminar 
and finally falling in decay; leaflets conspicuously discolorous, 
green above and with a chalky coating underneath; fruit small, 
ovoid or globose-ovoid, 8 to 9 mm long, including the short, 
terete, pedicelliform perianth, and 5 mm thick 36. C. bicolor. 
1. CALAMUS MOLLIS Blanco FI. Filip. (1837) 264; ed. 2 (1845) 184; 
ed. 3, 1 (1877) 329; Kunth Enum. PI. 3 (1841) 594; Mart. Hist. 
Nat. Palm. 3 (1838) 336; Walp. Ann. 3 (1853) 486, 5 (1858) 831; 
