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. stphonospathus var. batanensis. 
e’. Leaf-sheaths very densely armed, at least in their upper part, 
with ascending unequal spines. 
f’. 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). 
g'. 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. 
g. 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. 
@, 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. 
e’. 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. Pl. 3 (1841) 594; Mart. Hist. 
Nat. Palm. 3 (1838) 886; Walp. Ann. 3 (1853) 486, 5 (1858) 831; 
