FLORA OF THE HAWAIIAN ISLANDS. 173 



1. COLUBRINA L. C. Rich. [Kukuku.] 



Flowers hermaphrodite. Calyx 5-parted, tube hemispherical, lobes 

 triangular-ovate, spreading. Petals 5, inserted on the margin of the 

 disk, unguiculate, hooded. Stamens 5, included in the petals. Disk 

 thick, filling the calyx -tube, annular, 5 - 10-lobed. Ovary immersed in 

 the disk, 3 -celled, terminated by a 3-parted style; stigmas obtuse, 

 papulose. Drupe obscurely 3-lobed, ringed below the middle by the 

 calyx-tube, 3-celled, loculicidally dehiscing or 2-valved. Seeds 3- 

 sided. Albumen thin. Cotyledons orbicular. Erect or spreading 

 shrubs. Leaves alternate or opposite, usually 3-nerved from the base. 

 Flowers axillary, cymose or fascicled. 



Genus of about 10 species, mostly from tropical and warm North America, one widely 

 spread throughout the old world. 



1. C. ASIATICA Brongn. (Enum. No. 85.) A large shrub, quite 

 glabrous, with long, slender, often flexuose branches. Leaves petio- 

 late, ovate or broadly cordate, acuminate, 2' - 3' long, crenate-serrate, 

 3-nerved and penninerved, smooth and shining but scarcely coriaceous. 

 Cymes shortly pedunculate, rarely exceeding the petioles. Flowers 

 greenish, about 2" in diameter. Fruit about 4" in diameter, depressed 

 at the top, furrowed opposite the dissepiments, the endocarp sepa- 

 rating more or less perfectly into 3 or rarely 4 membranaceous cocci. 



In open land, as In the vicinity of Ewa, Ac., Oahu. Also Kauai, and probably the other 

 Islands. A common species throughout the Pacific and tropical Asia. 



2. C. OPPOSITIFOLIA Brongn. (Enum. No. 86.) At once to be 

 distinguished from No. 1, by its opposite, entire, coriaceous, ovate or 

 oblong leaves. Plant smooth throughout, with more rigid branches 

 than C. Asiatica. Leaves 2' - 5' long, 1' - 3' wide. Fruit harder and 

 larger. 



Hawaiian Islands (collected by Eemy), no localities specified. 



2. ALPHITONIA Reissek. [Kauwila.] 

 Flowers hermaphrodite. Calyx 5-lobed, spreading, with a strong 



salient crest on the inside of the lobes. Petals involute. Stamens 5, 

 included in the petals. Disk thick, filling the calyx-tube. Ovary im- 

 mersed in the disk, 2- or rarely 3-celled, tapering into a shortly-lobed 

 style. Drupe globular or broadly ovoid, the epicarp of a dry, mealy, or 

 somewhat corky substance ; endocarp of 2 or 3 hard coriaceous nuts 

 or cocci, opening inwards by a longitudinal slit. Seeds with a shining 

 hard testa, completely enclosed in a membranous brown shining aril- 

 lus, open at the top, but with the edges folded over. Albumen cartila- 

 ginous or horny ; cotyledons flat. Tree. Leaves alternate, penni- 



