108 
aepalis calycinis alterna, filamentis basi incrassatis* 
antheris didymis. Ovarium rudimenta abortivum 
FI. Fem. ut masculis, parapetalis angustior, stami¬ 
na 0. Ovarium difforme sepe didymus, stylis 
sepe 2, interdum unicum, brevis, stigmata capi- 
lata. (Fructus capsul. 2—1. monosp ?)—Obs. 
Very near to Zanthoxylum , differing by the re¬ 
markable parapetals, situation of stamina and few 
pistils. The name means false petals. Belong¬ 
ing probably to the family of Rhamnoides Raf. 
357. Pseudopetalonglandulosum Raf. Arboreum, foliis 
alternis impari pinnatis, petiolis inermis, foliolis 
11—13 oppositis dentatis, dentibus glandulosis ; 
floribus termiaalihus cymosis. Raf—Zanthoxj'- 
lum Rob. p. c>07. It has some analogy with Z. 
fraxineum , but is yet very different: It is a tree 
from 30 to 40 feet high, with a large rohnd head, 
the stem is straight, the branches are nearly ver- 
ticillated, the thorns are short and straight, fixed 
on a thick pyramidal knob, the bark is whitish. 
The flowers are small and green. This tree has 
a strong smell in all its parts, and a burning taste, 
even in the bark and wood ; it is employed for 
the aromatic baths, but delicate persons are apt 
to feel indisposed by its use. The roots have 
been employed successfully as a vermifuge for 
horses. 
368. Ptelea ? tomentosa Raf. Arborescens, ramulis 
tomentosis, foliis tern at is, foliolis lanceolatis inte- 
gris subtus cano tomentosis, media majore ; flo- 
ribas terminahbus paniculatis, stigma unicum! 
