190 
Til ALA MI FLORAE. 
Shrubs or trees, frequently prickly. Leaves in general 
alternate and punctato-glandulose. Name , from ^avdog yellow , 
and Zykov wood. The timber of several trees belonging to this 
genus is very valuable. It is very durable, which may be as- 
cribed to the oil with which it is impregnated. 
1. Zanthoxylum pterota. Sciven-tree , or bastard 
Iron-wood. 
Aculeate leaves impari-pinnate, leaflets obovate 
crenated subemarginate, petiole slightly margined, 
prickles 2 stipulary uncinate, flowers tetrandrous. 
Lauro affinis, jasmini alato folio, costa media membranulis 
utrinque exstantibus alata, ligno duritieferro vix cedens, Sloane, 
II. 25. t. 162. f. 1. — Pterota subspinosa, Browne , 146. t. 5. f. 
1. — Fagara pterota, Willd. Spec. I. 666. — Zanthoxylum pterota, 
De Cand. Prod. I. 725. 
HAB. Thickets. Port- Royal mountains, &c. 
FL. May — July. 
A shrubby tree, about 12 feet in height: branches prickly 
or unarmed. Leaves alternate, impari-pinnate : leaflets 4-5 
paired, obovato-oblong, crenated, subemarginate, glabrous, pel- 
lucido-punctate, subsessile : petiole about 5 inches long, mar- 
gined. Prickles, when present, stipulary, hooked. Panicle 
terminal and axillary, branched : peduncle of nearly the same 
length as the petiole, angulose. Flowers 4-6 together, sub- 
sessile, of a greenish yellow colour, odorous. A broad-ovate 
concave bractea at each division of the panicle. Calyx small, 
4-partite. Petals 4, oblong, obtuse, concave. Stamens 4, 
longer than the petals: anthers yellow, with the pollen very 
abundant. Ovary single, ovate : style 1, conical : stigma sim- 
ple. Mature fruit size of a black pepper, 1 -celled, 2-valved, 
1-seeded : seed glabrous, shining, of a brown colour. 
The figure of the leaf given by Browne (tab. 5. f. 1.) is in- 
correct, and appears to be that of Weinmannia glabra. The 
ovaries, according to De Candolle, are two. I could only de- 
tect a slight groove along one side of the style. 
2 * Zanthoxylum emarginatum. Emarginate- 
leaved Yellow-wood. 
Unarmed, leaves abruptly or impari-pinnate 2-3- 
jugate, leaflets ovate emarginate glabrous, racemes 
terminal, flowers triandrous. 
Lauro affinis terebinth! folio alato, ligno odorato candido, 
Sloane, II. 24. t. 168. f. 4. — Zanthoxylum emarginatum, Swartz, 
PI. Ind. Occ. 572. 
