44 



XII. POLYGALACEjE 



[Poll/gala 



Outer Himalaya from Nepal eastwards, 2,000-7,000 ft. Khasi_ hills, Upper Burma, 

 Hills of the western coast. PI. June-August. Ceylon, Malay Archipelago, China. 



2. P. Karensium, Kurz (Chammbuxus Karensium, Kurz, P. Fl. i. 79), is a small glab- 

 rous shrub, frequent on the hills east of Toungoo, 4,000-6,000 ft. Leaves lanceolate, 

 pale beneath, narrowed into a petiole J-l in. long. PI. white, with pale lilac tips, in 

 short unilateral racemes. Capsule J in. diarn., membranous. Seeds obovate, silky. 



2. XANTHOPHYLLUM, Roxb. ; Fl. Brit. Ind. i. 208. 



Trees or shrubs, leaves turning yellow in drying. Sepals 5, nearly equal. 

 Petals 4 or 5, unequal, zygomorphic, the lowest keeled. Stamens 8, distinct, 

 partly attached to base of petals. Disk annular, often lobed, hypogynous. 

 Ovary 1-celled. Fruit indehiscent, 1-celled.. Seed without albumen, arillus 

 none. Species 40, from India to New Guinea and tropical -Australia. 



A. Mowers more than -^- in. long 



ovules 4-14. 



1. X. flavescens, Roxb. Cor. PI. t. 284 ; Kurz, P. Fl. i. 81.— Syn. X. Arnot- 

 tiamim, Wight ; Bedd. Manual t. 3. Vern. Muttei, Tarn. ; Thitpyu, Burm. 



A large glabrous evergreen tree. Leaves coriaceous, 4-7 in. Secondary 

 nerves 5-7 pair, finely and conspicuously reticulate veins between them. Fl. 

 J— \ in. long, yellow, in axillary or terminal panicles. Septals finely tomentose. 

 Ovary densely strigose, with pluricellular hairs. The number of ovules varies 

 from 4-12 (the forms X. angustifolium, Wight 111. 50 t. 23, and X. virens, 

 Roxb. Cor. PL t. 284; Kurz, F. Fl. i. 81, have only 4 ovules). Fruit globose, 

 § in. diam., olive green, walls very thick; 



"West side of the peninsula, from the Nilgiris southwards, Silhet, Chittagong hills, 

 Lower and Upper Burma. PI. Pebruary-May. Also Ceylon, Java, Sumatra. 2. X. affine, 



Korth. ; Kurz, F. Fl. i. 82. 

 " (-^?*». Tenasserim, Malay Peninsu- 



la. A shrub or tree. Leaves 

 thinly coriaceous, sepals to- 



mentose, ovary 

 ovules 8-14. 



glabrous, 



Fig .18. — Securidaca tavoyana, Wall. i. 



B. Flowers less than 

 |- in. long, ovules 4. 



3. X. glaucum, Wall.; 

 Kurz, F. Fl. i. 81. Vern. 

 TJritjjyu, Lower, Thit Kay- 

 in, Upper Burma. 



A glabrous evergreen 

 tree. Leaves chartaceous, 

 glaucous and opaque be- 

 neath, reticulate veins dis- 

 tinct, Fl. white, 4-;L in. 

 long, in large lax, slightly 

 pubescent panicles, ovary 

 with 1-celled hairs. Fruit 

 glabrous, verrucose, §— | in. 

 diam. 



Upper and Lower Burma, 

 in moist places, often forming 

 strips of pure shady forest. 

 Fl. March, April. Malay 

 Peninsula. 



4. X. andamanicum, King, 

 Ann. Bot. Gard. Calc. vol. v. 

 t. 161. Andamans. A small 

 tree. Leaves thinly coriace- 



