^[atel■ials for a Flora of the Malai/an Penhisula. 213 



dioeceous shrub : young branches rather stout, striate, sub-quadrangular. 

 Leaves 1-foliolate : leaflet coriaceous, obovate-elliptic, very obtuse, 

 narrowed to the base : main nerves about 9 pairs, spreading, inconspi- 

 cuous ; length 4*5 to 6 in,, breadth 2 to 3 in ; petiole '75 to 1 in. 

 Panicles not much longer than the petioles, few-branched, cymose. 

 Flowers "2 in. in diara. Calyx-lobes acute. Petals longer than the calyx, 

 lanceolate, acute, pubernlous outside, ridged along the midrib on the 

 inner surface inside. Kurz For. Flora Burraah, I, 182. 

 Andaman Islands; Heifer (Kew. Distrib. ) No. 1192. 



4. Zanthoxylum, Linn. 

 Shrubs or trees, often armed with stout prickles. Leaves alternate, 

 3-foliolate or unequally pinnate ; leaflets opposite or alternate, entire or 

 crenate, often oblique, punctate. Flowers small, in axillary or terminal, 

 peduncled, broad or narrow cymes, white, pink, or greenish, often uni- 

 sexual. Calyx 3-8-fid, rarely 0. Petals H-5, rarely 0, imbricate or in- 

 duplicate-valvate. Disc small or obscure. Stamens 3-5, hypogynous or 

 reduced to scales in the 9 . Ovary rudimentary in the c? , in the 9 of 

 1-5 oblique, 1-celled carpels ; styles sublateral, free or connate above, 

 stigma capitate ; ovules 2 in each cell, usually collateral. Fruit of 1-5, 

 globose, coriaceous or fleshy, 1-seeded cocci, dehiscing ventrally ; endocarp 

 horny, separating or not. Seed oblong and compressed, or globose, often 

 hanging out of tlie carpel, hilum broad, testa bony or crustaceous, blue 

 or black, shining, albumen fleshy ; embryo axile, straight or curved ; 

 cotyledons flat, radicle very short. — Distrib. About 80 species, all either 

 tropical or subtropical. 



Unarmed or very slightly armed : leaves 3- 

 foliolate ; cymes axillary and terminal; 

 fruit 3 in. in diam. ... ... I. Z. ovalifoKum. 



Armed ; leaves pinnate, leaflets 4 to 9 pairs ; 



cymes terminal ; fruit "12 in. in diam. ... 2. Z. myriacanthum. 



1. Zanthoxylum ovalifolium, Wight 111. I, 169. A shrub or 

 tree : young branches at first puberulous but speedily glabrous, 

 lenticellate, unarmed, or with a few short straight prickles. Leaves 3- 

 foliolate : petiole 125 to 2-5 in., not armed ; leaflets sub-coriaceous, 

 elliptic-oblong, slightly obovate, the apex with an abrupt short obtuse 

 point, the edges crenulate, the base narrowed ; both surfaces shining : 

 main nerves 10 to 14 pairs, sub-horizontal, not much more prominent 

 than the intermediate nerves; length 2 to 5 in., breadth J '2 to 2*5 in. ; 

 petiole 2 to '4 in., sometimes almost absent ; the middle leaflet larger 

 than the two lateral. Cymes slender, paniculate, pedunculate, axillary 

 and terminal, shorter than the leaves, with few alternate branches, 



4&5 



