344 The Philippine Journal of Science 1919 
f. Leaflets having three slightly bristly nerves on the upper 
surface and covered throughout on the lower surface with 
numerous fulvous bristles; female spadix with slender, very 
spreading spikelets; fruit small, globose-ovoid (11 to 12.5 
by 7 mm), with a narrow beak; seed pitted-ruminate. 
5. C. filispadiz. 
f*. Leaflets with two bristly lateral nerves and the midrib 
smooth on the upper surface, the midrib bristly and the 
lateral nerves smooth underneath; spadices very loosely 
branched; male spikelets short, comblike; fruit spherical, 15 
to 16 mm in diameter; seed very deeply ruminate through- 
out 6. C. Diepenhorstui var. exulans. 
d. Leaflets lanceolate, 5-costulate; very robust; leaflets large, equi- 
distant; fruit large, ellipsoid, 8.5 cm long, 2.3 mm thick; seed 
quadrangular 7. C. ornatus var. philippinensis. 
ec’. Leaflets conspicuously discolorous, green above, white underneath; 
leaf-sheaths flagelliferous; spadix flagelliferous at its apex; 
primary spathes much lacerated in their upper part. 
d'. Leaflets bristly on three nerves above and on the midrib alone 
beneath : 8. C. discolor. 
d*, Leaflets without bristles or nearly so on the upper surface, densely 
sprinkled with numerous subspiny bristles beneath. 
C. discolor var. negrosensis. 
b?. Female flowers supported by a distinct pedicel derived from the elonga- 
tion of the involucrophore; leaves of the upper part of the plant 
having the apices with gradually diminishing, pluricostulate leaflets, 
and the rachis clawed and subcirriferous. 
ce’. Leaflets distinctly grouped, broadly oblanceolate and suddenly apic- 
ulate, slightly paler below than above; spikelets branched; fruit 
pisiform 9. C. Cumingianus. 
c. Leaflets not grouped, lanceolate, gradually acuminate, more or less 
covered underneath with a very thin, adherent, ochraceous coating; 
spikelets simple, elongate; fruit pisiform........ 10. C. simphysipus. 
. a*, Leaves having the rachis prolonged into a clawed cirrus. 
b*. Male and female spadices having the spikelets provided with a very , 
distinct pedicellar part which is inserted at the bottom of the 
spathes. 
ce’. Very robust; leaf-sheaths covered with slender spiculae, the latter 
individually distinct or more or less confluent by their broadened 
bases; leaflets more or less furnished with long bristles, especially 
on the midrib underneath; secondary spathes coriaceous, entire; 
fruit spherical, 10 to 12 mm in diameter; secondary spathes 
smooth 11. C. Merrillii (forma typica). 
d@’. Secondary spathes prickly................ C. Merrillii var. Merrittianus. 
d*. Secondary spathes smooth or nearly so; a smaller plant and 
with slenderer spikelets than in the species, the fruit also 
smaller (9 mm in diameter) ..............C. Merrillii var. Nanga. 
ce’. Moderately large; leaf-sheaths very densely covered with blackish 
uniform bristles; leaflets with long bristles on three costae on 
both surfaces; fruit spherical, 10 to 12 mm in diameter. 
; 12. C. Foxworthyi. 
