APOCYNACEAE 373 



acuminate. Corolla yellow, about 12 cm long, the tube slender below, in- 

 flated above, the limb about 8 cm wide. 



Cultivated for ornamental purposes, fl. all the year; a native of tropical 

 America, of recent introduction here. 



8. WRIGHTIA R. Brown 



Pubescent or glabrous trees with abundant milky sap. Leaves ovate to 

 oblong, opposite. Flowers of medium size, in terminal and axillary cymes. 

 Calyx short, 5-parted, with glands or scales inside. Corolla salver-shaped, 

 the tube cylindric, rather short, the throat with 1 or 2 series of usually 

 fimbriate scales. Stamens inserted near the top of the tube, exserted, 

 surrounding and adhering to the stigma. Ovary of 2, free or connate, many- 

 ovuled carpels; style filiform. Follicles stout, connate or distinct. Seeds 

 linear, coma deciduous. (In honor of W. Wright, an English physician.) 



Species about 12, tropical Africa and Asia to Australia, 3 in the Philip- 

 pines. 



1. W. lanltl (Blanco) Merr. (W. ovata A. DC.) Laniti (Tag.). 



A tree 5 to 12 m high with firm white wood. Leaves ovate to oblong-ovate, 

 acuminate, 6 to 12 cm long, pubescent, distichous. Cymes 5 to 8 cm long. 

 Corolla pink and white. The tube short, the lobes ovate or oblong, about 

 1.5 cm long, the scales alternating with the lobes. Stamens exserted. Folli- 

 cles cylindric, pointed, 10 to 30 cm long, 1 to 1.5 cm in diameter; coma of 

 the seeds copious, white. (Fl. Filip pi. 40.) 



In thickets, Pasay to Masambong and Caloocan, fi. May-Aug.; widely dis- 

 tributed in the Philippines. Endemic. 



9. NERIUM Linnaeus 



Erect, branched, glabrous shrubs, the leaves narrow, coriaceous, whorled or 

 rarely opposite, dMisely nerved. Flowers large, in terminal, racemose cymes. 

 Calyx 5-parted. Corolla funnel-shaped, the tube cylindric, enlarged above, 

 the throat with a row of appendages cleft into linear segments, the lobes 

 broad, spreading. Stamens inserted at the inflation of the tube, the anthers 

 included, hairy, surrounding and adhering to the stigma. Ovary of 2 dis- 

 tinct carpels, many-ovuled. Follicles elongated, cylindric. Seeds villous, 

 with a terminal coma. (The ancient Greek name of the oleander.) 



Species 2 or 3, Mediterranean region to Japan, a single introduced one in 

 the Philippines. 



* 1. N. INDICUM Mill. (N. odorum Soland.). Adelfa (Sp.-Fil.) ; Oleander. 

 An erect shrub 1.5 to 3 m high. Leaves mostly in whorls of 3 or 4, linear- 

 lanceolate, acuminate, 11 to 15 cm long, the numerous nerves horizontal. 

 Flowers 4 to 5 cm in diameter, white, pink, or red, fragrant. Follicles long. 



(Fl. Filip. pi. sr.y 



Cultivated but not spontaneous, fl. all the year; in most towns in the 

 Philippines in cultivation. AflFghanistan to India, and Japan; introduced in 

 the Philippines at an early date. 



10. STROPHANTHUS DeCandolle 



Stout woody vines, shrubs, or trees. Leaves opposite. Flowers large, in 

 terminal cymes. Calyx 5-parted, glandular within. Corolla funnel-shaped, 

 the throat broader and campanulate, with 5 cleft, or 10 free appendages, the 



