UUTACEiE. 
195 
Lunan s Hortus, that the roots are covered with a light soft 
powdery substance of a yellow colour, and an agreeable scent : 
and it would appear that it is in it, that any medicinal powers, 
the roots may possess, reside. The expressed juice of the young 
roots is said to be a remedy for colic or dry bellyach. The 
bark of the tree which bears the same specific designation in 
North America, is considered as a powerful stimulant and su- 
dorific, diuretic, and febrifuge. Barton mentions, that it is 
bitter to the taste, slightly odorous, colouring the saliva yellow, 
exciting saliv<ition when chewed, and that it has been employed 
with success in rheumatism, paralysis of the tongue, &c. Dr 
Gillespie, a W est- India practitioner, found the tincture to be a 
good febrifuge ; and Manguet states that the decoction is anti- 
syphilitic. 1 he analysis of Chevallier and Pelletan, gives a pe- 
culiar crystalline substance which they call Zanthopicrite ; a yel- 
low colouring matter, which appears to be the source of the bitter 
taste of this bark ; another red colouring matter ; some salts. 
(Journal de Chimie Med. II. 314.) According to the authors 
of the Dictionnaire de Mati&re Medicale, however, there is 
some question, as to the species of Zanthoxyjlum to which the 
bark analysed belonged. 
This is a valuable timber-tree: the wood is yellow, and 
used in house-building. 
9. Zanthoxylum Sumach. TVest-India Sumach. 
Unarmed, leaves impari-pinnate G-jugate, leaflets 
oblongo-lanceolate serrated, flowers polygamous ape- 
talous, stamens 10. 
HAB. St Andrew’s and Port-Royal mountains. 
FL. May, June. 
A tree 20 feet in height; branches spreading, lax, ferrugi- 
neo-tomentose at their extremities. Leaves impari-pinnate ; 
leaflets opposite, shortly petiolulated, oblong, lanceolate, sub- 
acuminate, broad at the base, serrated, penni- nerved, reticulato- 
venose, glabrous above, flavescent and villoso-tomentose along 
the mid-rib beneath, 4 inches long and 2 broad : common 
and partial petioles terete, ferrugineo-tomentose. Corymbs 
towards the ends of the branchlets, axillary, one-fourth short- 
er than the leaf, dichotoinously branched : common flower- 
stalk compressed, ferrugineo-tomentose. Flowers numerous, 
crowded, pedicelled, small, yellow. $ FL Calyx of 5 sepals ; 
sepals ovate, acute, coriaceous, externally tomentose, internally 
with a ridge. Petals 0. Stamens 10, twice the length of the 
sepals. Filaments hairy at the base: anthers elliptic ; pollen 
plentiful. Ovaries minute, 5, ovate : styles 5 rostrate. 5 Fl. 
Calyx and stamens as in the barren. Ovaries more distinct. 
Carpels 5, or by abortion fewer, generally only two distinct at 
