192 THALAMIFLOR^K. 



A shrub, about 9 feet \n height : branches erect, terete, (to- 

 wards their extremities sub-angulose), glabrous, armed with 

 sharp straight black spiny prickles. Leaves abruptly pinnated : 

 leaflets in 4 pairs, petiolulated, oblongo-lanceolate, acute at the 

 base, obtuse and subemarginate at the apex, very entire, sub- 

 coriaceous, obscurely nerved, glabrous, shining above, minutely 

 punctulated on both sides ; with the mid-rib of the leaflet oc- 

 casionally armed with a spine-like prickle,: common petiole 

 about 4 inches in length, sub-3-gonal, with the upper side plane 

 and the edge raised (so as to be subalate ?) ; petiolule short, 

 plane above. Racemes axillary, solitary, shorter than the leaf, 

 subdivided ; divisions sub-simple : peduncle and its branches 

 sub-3-gonal, glabrous ; pedicels very short, bearing a single 

 small white flower, furnished at the base with a minute concave 

 bracteole. Calyx minute, 3-partite ; segments roundish, acute. 

 Petals 3, oval. Stamens 3, rather longer than the petals, 

 spreading. Ovary globose, indistinctly 3-lobed : style simple, 

 conical, short : stigma obtuse. 



5. * Zanthoxylum spinosum. Thorny Yellow-wood. 



Spinose, leaves pinnated 8-10-jugate, leaflets ses- 

 sile ovate acuminate subentire with the petioles and 

 branches thorny, cymes terminal, flowers triandrous. 



Swartz, Fl. Ind. Occ. 574. 



HAB. Dry mountains. 



FL ? 



A shrub, about 3 feet in height. Stem erect, thorny, branched. 

 Thorns scattered, needle-shaped, an inch in length, standing 

 out : those of the stem stronger and broader at the base. Leaf- 

 lets shortly acuminate, emarginate, minutely crenulated, gla- 

 brous, shining, with the mid-rib thorny : petiole a foot in length, 

 thorny. Cyme terminal : flowers crowded, small, white. Calyx 

 3-fid ; divisions ovate, acute. Petals 3. Filaments very short. 

 Ovary 3-lobed, 3-fid : style : stigmata 3, obtuse. Swartz. 



6. Zanthoxylum acuminatum. Acuminated-leaved 



Yellow-wood. 



Unarmed, leaves abruptly-pinnate 2-3-4-jugate, 

 leaflets elliptic acuminate obsoletely crenulated shin- 

 ing coriaceous, cymes terminal, flowers dkecious, $ 

 3-androus. 



Swartz, Fl. Ind. Occ. 575 Swartz, Prod. 33. 



HAB. Near Tweedside House by the road side. 



FL. February. 



A shrubby tree, about 10-15 feet in height, with branches 



