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No. 20. 
Ceiatopetalum a petalum, D. Don. 
The Coach Wood. 
(Natural Order SAXIFRAGEvE.) 
Botanical description. —Genus, Cerope/alum, Sm. Bot. Nov. Roll. (1793). 
Calyx-tube.— Short, adnate to the base of the ovary ; lobes 5, valvate, persistent and enlarged 
after flowering. 
Petals. —Small and laciniatc or none. 
Stamens. —Ten, inserted on a perigynous disc. 
Anthers. —Small, the connective produced into a recurved appendage. 
Ovary. —Short, half-inferior, 2-celled, with 4 collateral ascending ovules in each cell, tapering into 
2 more or less united styles, free and recurved at the top ; stigmas terminal. 
Fruit. —Small, hard and indehiscent, surrounded by the 5 wing-like horizontally spreading 
enlarged calyx-lobes. 
Seed. —Solitary, slightly curved; embryo green, curved, in the axis of a fleshy albumen. 
Trees or shrubs, glabrous and resinous. 
Leaves. —Opposite, with 1 or 3 digitate leaflets articulate on the petiole. 
Stipules. —Very small, 
Flowers. —Small, in terminal trichotomous cymes or corymbose panicles. (B. FI., ii, 442.) 
Botanical description. —Species, C. apelalum , D. Don., Cunon. II, in Edinb, 
New Phil. Journ., April to Juno, 1S30. 
A beautiful tree of 50 to 100 feet, with a smooth bark. 
Leaflets. —Usually solitary, occasionally 3 on luxuriant shoots or perhaps young trees, from ovate- 
lanceolate to narrow-lanceolate, 3 to 5 in. long, or nearly twice that size on luxuriant barren 
branches, obtusely serrate, coriaceous, shining, narrowed at the base, articulate on a petiole 
of £ to 1 in. 
Flowers. —Numerous in rather dense corymbose cymes, usually shorter than the last leaves, 
sometimes slightly pubescent. 
Calyx-lobes. —Acute, above 1 line long in flower, scarcely above j in. in fruit. 
Petals. —Non*'. 
Appendage of the connective of the anthers smaller and straightcr than in C, gummiferum. 
(B. FI., ii, 442.) 
Botanical Name. — Ceratopetalum, from two Greek words, kevets, a horn, 
and petalon , a petal, the petals being jagged, reminding one of a stag’s horn, in the 
species ( C. ynmmifcrum) on which the genus was founded. 
Apetalnm , without petals, this charaptej* bejng distinctive of the species, 
A 
