Polygala.'] PolygalacecE. 79 



Herbs (rarely shrubs). Fruit 2-celled, 2-seeded. 



Sep. very unequal. Stam. 8 . . . ,1. Polygala. 



Sep. nearly equal. Stam. 4-5 . . . .2. Salomonl\. 

 Trees. Fruit i-celled, i-seeded . . . .3. Zanthophyllum. 



Of the species of Polygala only four occur in the montane zone, one, 

 P. arillata^ being confined to it. Salomonia and Zanthophyllum inhabit 

 the moist low region. 



I. POXiVG-AIiA, L. 



Herbs, rarely shrubs ; fl. racemose ; sep. 5, 2 inner much 

 larger (wings) ; pet. 3, adnate at base to monadelphous 

 stamens, lower one keeled and crested at end ; stam. 8, fila- 

 ments connate for lower half, forming a split sheath, anth. 

 opening by pores ; ov. 2-celled, with a single ovule in each ; 

 fruit a more or less compressed capsule, 2-celled, 2-seeded ; 

 seed with endosperm, usually with an aril or caruncle. — ■ 

 Sp. about 250 ; 16 in FL B. Ind. 



An erect shrub i. P. arillata. 



Herbs, sometimes with a woody base. 

 Wing-sep. membranous. 



Racemes lateral, hairy . . . . 2. P. javana. 

 Racemes terminal, glabrous . . . 3. P. leptalea. 

 Wing-sep. herbaceous. 

 Leaves thin. 

 Capsule ciliate. 

 Wings longer than capsule. 

 Lves. acute 4. P. glaucoides. 



Lves. obtuse 

 Wings as long as capsule 

 Capsule with a thick wing 

 Leaves thick 



5. P. CHINENSIS. 



6. p. ROSMARINIFOLIA. 



7. P. SIBIRICA, var. 



8. p. TELEPHIOIDES. 



I. P. arillata, Ham. in Don Prodr. 199 (1825). 



Thw. Enum. 22. C. P. 434. 



Fl. B. Ind. i. 200. Wight, Ic. t. 946. 



A slender shrub or small tree, 8-12 ft., bark smooth, 

 yellowish-grey, young parts pubescent; 1. 3-5 in., lanceolate 

 or obovate-lanceolate, acute at both ends, entire, glabrous 

 above, slightly pubescent and with prominent veins beneath, 

 thin, petioles \ in. ; fl. large, \ in., in lax, drooping, long- 

 stalked, terminal or extra-axillary racemes, ped. \ in., pubes- 

 cent, bracts linear, very early caducous; sep. very unequal, 

 soon falling, wings very large, petaloid, oblong-ovate ; pet. 

 erect, large, equal, connate for half their length, soon falling ; 

 capsule didymous, rotundate, nearly \ in., somewhat com- 

 pressed, longitudinally wrinkled when dry ; seeds large, ^ in., 



