14-2 



ARBORETUM KT FRUTiCETUM BRITANNICUM. 



Genus I. 



XANTHO'XYLUM L., and H. B. et Kth. The Xanthoxvlum. or 



Toothache Thee. Lin. Sijst. Dioe'cia Tri-Pentandria. 



Jilentification. Lin. Gen., No. 1.50. and 1109. ; Dec. Prod., 1. p. 72.5. ; Don's Mill., 1. p. 801. 



Synonymes. Zanthoxylum (it is thus spelled in many botanical works) ; Karapm&nn/a Rafin.; 

 Clavalier, fV. ; Zahnwehholz, G^r.; Santossilo, /?a/. 



Derivation. From xanthos, yellow, and xulon, wood ; from the yellowness of the wood, more espe- 

 cially of the roots. The French name means club tree, and the German name, the toothache tree. 



Gen. Char. Calyx short, 3 i-parted. Petals equal in number to the lobes 



of the calyx, but longer, very rarely wanting. Male flowers. Stamens equal 



in number with the petals. Female flowers. Stamens sometimes wanting, 



or very short. Ovaries 5 1, sometimes equal in number to the petals. 



Capsules 1 5, 1 2-seeded. Seeds globose, dark, shining. (Don's Mill.) 



Leaves compound, alternate, stipulate, deciduous; pinnately 3 13-folio- 



late. Floiuers axillary, small, greenish or whitish. Inflorescence \?>.r\o\\s. 



Deciduous low trees or shrubs, natives of North America, with prickles on 



the branches, petioles, and midrib of the leaflets. The species in British 



gardens are of easy culture in any common soil, and are easily propagated 



by seeds, layers, or cuttings of the roots. 



^ ^ 1. X. Fraxi'neum Willd. The Ksh-leaved Xanthoxylum, or common 



Toothache Tree. 



191. Xanthuxjlun. ^axineum 



