Zanthoxylum.] RUT ACE AE. 149 



obsolete. Stamens 8, inserted at the base of the disk, those 

 opposite the petals shorter ; filaments subulate or flattened ; 

 anthers oblong or cordate. Ovary 4-celled, deeply 4-lobed ; style 

 basilar or styles 4 subterminal, more or less combined ; stigma 

 capitate, 4-lobed ; ovules 2 in each cell. Fruit of 4 cocci, dehiscing 

 on the inner face. Seeds oblong; testa black, shining; albumen 

 fleshy; cotyledons oblong; radicle short, superior. 

 MELICOPE INDICA, Wt. Ic. t. 1051 ; F. B. I. i. 492. 



A shrub with opposite leaves and unifoliolate leaflets with 



rather long petioles ; leaflets elliptic or obovate ; flowers 3-5 



on long axillary peduncles. 



W. Ghats, in the Kundahs range of the Nilgiris, 6,000 to 



8,000 ft. 



3. Zanthoxylum, Linn. 



Trees or erect or climbing shrubs, often armed with stout 

 prickles. Leaves alternate, trifoliolate or imparipinnate ; leaflets 

 opposite or alternate, entire or crenate, often oblique, pellucid- 

 punctate. Flowers small, in axillary or terminal, usually pani- 

 culate, cymes, often unisexual. Calyx 3-8-fid, rarely 0. Petals 

 3-5, sometimes 0. Disk small or obscure. Stamens 3-5, hypo- 

 gynous, reduced to scales in ? flowers. Ovary in 3 rudimentary, 

 in or ? flowers of 1-5 oblique 1-celled carpels ; styles sublateral, 

 free or connate above ; stigmas capitate ; ovules 2 in each cell. 

 Fruit of 1-5 globose, coriaceous or fleshy 1-seeded carpels 

 dehiscing ventrally ; endocarp horny. Seed oblong or globose, 

 often hanging out of the carpel ; testa shining, hard ; albumen 

 fleshy ; cotyledons flat ; radicle short. 



Petals ; leaves pinnate, the petiole and rhachis winged ; a prickly 



shrub 1. alatum. 



Petals present ; petiole and rhachis of leaves not winged : 



Leaves 3-foliolate ; a glabrous shrub, unarmed or with short straight 



prickles ; cymes in slender panicles 2. ovalifolium. 



Leaves pinnate : 



Climbing shrub with stems, -rhachis of leaf and even leaf-midribs 

 with many hooked prickles ; cymes axillary and terminal 



3. tetraspermum. 



Erect trees with many unequal-sided leaflets and conical prickles 

 on stem : 



Leaflets entire, very unequal-sided, rounded on the upper, acute 

 on the lower ; large tree 4. Ehetsa. 



