CERATOLOBUS. 3 
CERATOLOBUS. 
Key TO THE SPECIES. 
A. EuceratoLoBus.—Leaves with rhomboidal or cuneately oblong, radiately 
veined leaflets. 
I. Spadices provided with a long pedicellar part. 
Leaf-sheaths armed with long spines. Leaflets mealy-glaucous under- 
neath. 
- d. C. glaucescens Bì —Java. 
Leaf-sheaths covered with minute tubercled setae. Leaflets almost 
equally green on both surfaces. 
2. C. concolor Bi —Sumatra. 
II. Spadices sessile. 
Leaf-sheaths covered with minute seriate spiculae. Leaflets conspi- 
cuously discolorous, rhomboidal, the basal and apical ones smaller 
than the intermediate; spathe very large, thinly fugaciously rusty- 
furfuraceous. The largest species of the genus. 
3. C. discolor Becc.—Borneo. 
Leaf-sheaths covered with minute seriate spicule. Leaflets. slightly 
paler or subglaucescent underneath than above, the basal being 
the largest. Spathe fugaciously mealy-white. Neuter flowers 
similar to the males. Smaller plant than È. discolor. 
4. C. Kingianus Becc—Malay Peninsula. 
Leaf-sheaths covered with minute seriate spicule. Leaflets mealy 
underneath, the lowest smaller than the intermediate. Spathe 
fugaciously  rusty-furfuraceous. Neuter flowers similar to the 
female ones. A slender plant. 
5. UC. rostratus Becc—Borneo. - 
B. CryProcLapus—Leaves linear or narrowly lanceolate, unicostate, acuminate. 
6. C. laevigatus Becc. 
a. Leaflets few in fascicles, relatively broad. 
Forma typica—Malay Peninsula. 
8. Leaflets not many, subequidistant. 
var. Pegularis—Malay Peninsula. 
y. Fruit larger. 
| var. Maior—Malay Peninsula. 
ANN. Roy. BoT. GARD., CALCUTTA, Vor. XII. 
