(Greek for horned pod). Palmacex, tribe Caldmeae. Low or creeping pinnate palms allied to Calamus, and not as yet common in the American trade.

Stems and If . - stalks spiny but not the If . - blades: stems frequently 30 ft. or more long and armed with stout spines an inch long: leaves pinnate, often as much as 7 ft. long, with numerous alternate or opposite leaflets, which are crenate-dentate towards the apex: flowers polygamous-monoecious, in a paniculately branched spadix: fruit drupe-like, 1-seeded. - There are only 3 wild species and 2 species known in horticultural literature, the botanical status of which is doubtful. All the wild species come from Java or Sumatra. for cultivation, see Calamus to which Ceratolobus is closely related, differing in having rhomboid, not linear leaflets G.C. II. 23:338.


Blume. stem up to 30 ft. and about as thick as one's wrist: leaves 6-7 ft. long, of 14-18 sessile, erect or spreading leaflets which are 8-10 in. long, 2 1/2-3 1/2 in. wide, opposite above, alternate below: spadix from the axils of the upper leaves: spathes 2-horned, 4-6 in. long. Java.

C. concolor, Blume. Similar, with 10-14 leaflets, relatively broader than in C. glaucescens. Sumatra. - C. Findleydnus, Hort. Leaves 2-4 ft. long, clear pale shining green. Hab.(?). A.G. 15:169. - C. Micholitziana, Hort. Very elegant palm, the stem and leaf - rachis with scattered spines: leaves oblong, the leaflets remote, linear-oblong, acute, pale on the under surface. - Horticulturally the most attractive of the group N.Taylor.