nUTACE/E. 
189 
ORDER LI. RUTACE.E. 
Calycine sepals 3, 4, or 5. Petals rarely O, gene- 
rally of the same number as the sepals. Disk glan- 
dulose, fleshy. Stamens equal in number to the 
sepals or double or triple. Style dividing into stig- 
mata corresponding in number to the carpels. Car- 
pels 1-5, one-celled, dehiscent, 2-valved, cocculose 
internally from the endocarp changing into an elastic 
coccule contained within the external integument. 
Seeds fixed in an inverted position to the inner angle : 
embryo straight, 
ledons leafy. 
Perennial herbaceous plants, shrubs or trees: almost all of 
them with glandules dispersed through the different organs and 
diffusing a strong odour. Leaves without stipules, alternate or 
opposite, simple or compound. This Order is rather extensive, 
comprehending nearly 300 species, natives of all countries, and 
to be found in every situation. Those which are inhabitants of 
northern latitudes, are in general herbaceous and endowed with 
fetid properties. Such is the Rue tribe, the species of which 
are said to be emmenagogue, anthelmintic, and sudorific. The 
Bucku tribe, peculiar to the Cape of Good-Hope and Australasia, 
are neat heath-like plants, with an aromatic odour, and have 
been employed of late in urinary complaints. The Cusparia 
tribe are principally natives of South America, and several of 
them, such as the Angostura bark, have the reputation of being 
possessed of febrifuge qualities. And lastly, the Prickly yellow 
tribe, common to South America and the West Indies, have 
been found to be acrid, stimulant, and tonic. 
I. Zanthoxylum. Yellow-wood. 
Flowers hermaphrodite, or by abortion dioecious or 
monoecious. Calyx 3-9-lobed, more frequently 4-5 
partite. Petals equal in number and alternating with 
the lobes of the calyx, rarely O . Stamens generally 
equal in number and opposite to the lobes of the 
calyx. Carpels connate at the base or free, by abor- 
tion frequently reduced to a fewer number, so as to 
be in some species solitary ; when mature 2-valved, 
1-3-seeded : seed shining. 
compressed ; radicle superior ; eoty- 
