Securidaca.] xiii. POLYGALACErE. 141 



4. SECURIDACA, L. 



Climbers. Flowers in terminal panicles or compound racemes 

 (or in simple racemes or axillary), small. Sepals 2, outer boat- 

 shaped, 2 inner large petaloid. Petals 3, lateral ones separate 

 from the crested keel except at the base, upper ones absent. 

 Stamens 8; filaments imited; anthers opening by pores. Ovary 

 i-celled i-ovuled. Fruit a broad-winged samara, wing chopper- 

 shaped. Species about 25, chiefly in America, a few Asia and 

 Africa. 



Leaves ovate oblong to elliptic ; flowers panicled ; bracts 

 caducous (i) S. Tavoyana 



Leaves elliptic ; flowers in short panicled racemes ; bracts 

 persistent. . . . . . . . . (2) S. bracteata 



(i) S. Tavoyana Wall. Cat. 4196 ; Benn. in Hook. fil. F.B.I, i. 208. 



Climber. Branches, petiole, back of leaves, and inflorescence 

 pubescent. Leaves thin coriaceous ovate to oblong acute, base 

 round or shortly narrowed, smooth shining above, 4 in. long, i"5 in. 

 wide or less; petioles '2 in. long. Panicle lax spreading 6 in. long. 

 Branchlets pubescent, slender. Bracts very small caducous. Flowers 

 •25 in. long pink to mauve ; upper petal with yellow tip. Sepals 

 short oblong-ovate blunt. Lateral petals adnate to keel at base, 

 keel crested. Samara 3 in. long, wing oblique, tip rounded, strongly 

 veined. Hab. Pahang, Gunong Senyum (J. H. N. Evans). Dis- 

 irib. India, Burma, Java, China. 



(2) S. bracteata Benn. I.e. i. 208 ; King, I.e. 133. 



Stout climber puberulous. Leaves elliptic acuminate, base 

 round or shortly narrowed pubescent beneath, 2*5 to 3 in. long, 

 I to i'25 in. wide. Panicles of pubescent short racemes i in. long. 

 Bracts persistent very small. Outer sepals ovate hairy, inner 

 large round. Petals oblong truncate, keel-crest recurved plaited. 

 Samara 3 to 3*4 in. long. Hab. Not common, Malacca (Maingay). 

 Perak, Simpang (Wray). 



The leaves are more fleshy and thinner than in S. Tavoyana and panicles 

 shorter and fruit smaller. 



5. TRIGONIASTRUM, Miq. 



Tree. Leaves white beneath. Flowers in terminal axillary 

 panicles. Sepals 5, the 2 outer a little larger than inner. Petals 

 5 unequal, 2 lower partly united forming a keel, odd petal largest, 

 base saccate with a hairy gland. Stamens 5 or 6 ; filaments united. 

 Ovary hairy 3-locular; ovules pendulous solitary. Fruit of 3 

 samaroid carpels, each with i seed. Species 2, Malay Peninsula 

 and Islands. 



