346 XXXI. RUTACE^, [Tetractomia. 



(i) T. majus Hook. fil. F.B.I, i. 491; King, I.e. 211. Tetra- 

 merista paniculata Kurz, Journ. Bot. 1875, p. 2>^3- 



Tree with stout branches. Leaves very coriaceous, obovate- 

 elhptic blunt ; nerves 12 to 16 pairs, 8 to g in. long, 3 to 4 in. wide ; 

 petioles 2 to 2*25 in. long, thick. Cymes glabrous, 6 to 7 in. long. 

 Flowers "25 in. wide glabrous. Stamens 4, perfect ; staminodes 

 minute 4. Cocci -5 in. long, keeled. Seed oblong. Hab. Malacca, 

 (Maingay). Only once found and locality not certaih. 



(2) T. Roxburghii Hook. fil. I.e. 491 ; Ic. PL 1512 ; King, I.e. 

 212. Melicope tetrandra Roxb. Ft. Ind. ii. 257. 



Tree 30 to 80 ft. tall, 1-5 to 2 ft. through, glabrous. Branches 

 rather stout. Leaves sub-coriaceous obovate, tip rounded rarely 

 apiculate, long narrowed to base ; nerves fine 7 to 9 pairs, 2'5 to 

 6 in. long, i'5 to 3 in. wide; petioles "5 to i rarely i"25 in. long. 

 Cymes pubescent above, 3 to 4 in. across spreading, on a peduncle 

 4 in. long. Flowers '13 in. across, pale yellow or greenish white. 

 Stamens 8, alternate row attached to sepals. Cocci i to 3, -25 in. 

 long. Seeds oblong. Hab. Forests to 3000 ft. altitude. Singa- 

 pore (Maingay). Perak, Thaiping Hills (Derry, Kunstler). Penang 

 Hill (Curtis). Native names : Kertak Hudong ; Medang Hudang. 



4. ZANTHOXYLUM, L. 



Shrubs or trees often prickly. Leaves alternate trifoliate or 

 unequally pinnate. Leaflets entire or crenulate. Flowers small 

 pink, white or green often unisexual. Calyx 3- to 8-fid. Petals 

 3 to 5. Disc small. Stamens 3 to 5. Ovary of i to 5 oblique 

 i-celled carpels ; ovules 2 ; styles sub-lateral. Fruit of i to 5 cocci 

 globose, coriaceous-fleshy i-seeded dehiscing ventrally; endocarp 

 horny. Seed oblong or globose. Testa bony or crustaceous blue 

 or black. About 80 species, tropics. 



Unarmed shrub. Leaves trifoliate; fruit -3 in. 



through . . . . . . (i) Z. ovalifolium 



Rachis thorny ; leaves 7- to 9-fohate ; fruit 



•25 in. through (^) Z. hirtellum 



Thorny tree. Leaves pinnate; fruit '12 in. 



through . . (3) Z. myriacanthum 



(i) Z. ovalifolium Wight, HI. i. 169; Hook. fil. I.e. 492; King, 

 I.e. 213. 



Shrub or small tree. Branchlets puberulous, unarmed. Leaves 

 3-foliolate; leaflets sub-coriaceous elliptic-oblong, obtuse-pointed, 

 base narrowed, edge crenulate ; nerves 10 to 14 pairs, 2 to 5 in. 

 long, 1*2 to 2'5 in. wide; petioles r2$ to 2*5 in. long; petiolules 

 •2 to "4 in. long. Cymes slender axillary; branches few. Flowers 

 '12 to "2 in. long few, 4- to 5-merous. Coccus i, sub-globular, 

 pitted, 3 in. through. Hab. Singapore (Wallich 7469). Not seen 

 again. Distrib. India. 



Specimen doubtful. Wallich says the branches are armed, but there 

 arc no spines on the specimens and the Indian plant is unarmed. 



