142 



XIII. POLYGALACE^. 



[ Trigoniastrum . 



(i) Tr. hypoleucum Miq. Ft. Ind. Bat. Stipp. i. 395 ; Kwg, 

 I.e. 133; Ann. Hort. Bot. Calc. v. (2), 135, pi. 159. 



Tree 30 to 70 ft. tall. Stem 15 to 18 in. through. Leaves 

 elliptic lanceolate short acuminate, base narrowed, beneath white, 

 minutely pubescent; nerves 6 pairs prominent, 4 to 6 in. long, 

 i'25 to 2 in. wide; petioles '2 to 3 in. long. Panicles 3 to 6 in, 

 long. Flowers "25 in. across, white. Samaras 2 in. long strongly 

 nerved; wing rounded 75 in. across, greenish yellow. Hab. Forests, 

 Singapore, Bukit Timah. Johor, Pinerong (Cantley). Negri Sem- 

 bilan. Perak, Larut Hills 600 to 1000 ft. altitude (Kunstler). 

 Penang, near the Spout (Curtis) . Disirih. Sumatra. N ative names : 

 Marajali; Marasawa. 



6. XANTHOPHYLLUM, Roxb. 



Trees of medium or large size, or bushes. Leaves coriaceous, 

 often light green when dry. Racemes axillary and terminal. 

 Flowers white, pink or yellowish. Sepals 5 sub-equal. Petals 

 5 or 4, lower keel not crested. Stamens 8, free, 2 attached to base 

 of petals. Ovary often surrounded by a disc, stipitate i-celled; 

 ovules various. Fruit i-celled, i-to many-seeded, indehiscent. 

 Seed exalbuminous estrophiolate. Species about 30, mostly 

 Malayan, a few Indian, i Australian. 



Ovary and style glabrous. 

 Ovules more than 4. 



Leaves, small 3 to 8 in. long. 

 Flowers large -6 in. long. 

 Flowers small -25 in. long 

 Fruit small pulpy orange to black ; tree 

 Fruit dry globose green; bush or small 

 tree ....... 



Fruit large as a cricket ball, many seeded . 



Leaves large buUate; nerves puberulous 



beneath ...... 



Ovules 4 only. 



Leaves large, 9 to 18 in. long base narrowed; 

 a bush ...... 



Leaves large, 9 to 18 in. long, base cordate; 

 tree ....... 



(i) X. Scortechinii 



(2) X. Kingii 



(3) X. affine 



(4) X. obscurum 



(5) X. bullatum 



Ovary and style pilose. 

 Ovules more than 4.. 



Leaves rufous hairy beneath 



Leaves yellow hairy ..... 



Leaves glabrous small ; fruit large, rind thick 

 glabrous ...... 



Leaves glabrous 48 in. long; fruit -75 in., rind 

 thin tomentose ..... 



Ovules 4 only. 



Leaves pubescent beneath .... 



Leave glabrous ; fruit glabrous rind thick 

 Leaves large elliptic 7 by 3 in. 



(6) X. Hookerianum 



(7) X. venosum 



(8) X. rufum 



(9) X. sulphureum 



(10) X. stipitatum 



(11) X. pulchrum 



(12) X. puberulum 



(13) X. Kunstleri 



