XVII. XANTHOXYLA V CEJE : PTE^LEA. 



143 



Willd. Sp., 4. p. 757. ; Dec. Prod., 1. p. 726. ; Don's Mill., 1. p. 802. 

 Synonymes. Zanth6xylum raraifl6rum Mich. Fl. B. A. 2. p. 235. ; Z. ClSva Herculw var. Lin. Sp. 



Identification. 

 nonymes. 

 1455., Lam. Diet. 2. p. 38. ; 



; Z. americanum Mill. Diet. No. 2., and Tor. 8; Gray, 1. p. 214. ; 



Z. miteWWd. Euum ; Z. caribae'um G*e?-/. Fruct., but not of Lam. ; Z. tricarpum Hook, not of 

 Michx. ; Clavalier si Feuilles do Frene, Fr. ; Eschen-blattriges Zahnwehholz, Ger. ; Prickly 

 Ash, Amer. ; Frassino spinoso, Ital. 



Engravings. Du Ham. Arb., 1. t. 97. ; the plate of this species in Arb. Brit., 1st edit., vol. v. : and 

 our Jig. 191. 



Spec. Char., $c. Leaves pinnate, of 4 to 5 pairs of leaflets, and an odd one ; the 

 leaflets ovate, obscurely sawed, equal at the base ; the petiole round, and de- 

 void of prickles ; prickles in the situation of stipules. Flowers in axillary 

 umbels, without petals. (Dec. Prod., i. p. 726, 727.) A low deciduous 

 tree or shrub. Canada to Virginia. Height 10ft. to 15ft. Introd. 1740. 

 Flowers yellowish, with red anthers ; April and May. Seeds large, black ; ripe 

 in September. Decaying leaves yellowish green. Naked young wood ash- 

 coloured and greenish. 

 Variety. 



* s X. f. 2 virginicum, the X. virginicum of Lodd. Cat., of which there is 

 a plantin the garden of the London Horticultural Society, and several 

 in the arboretum of Messrs. Loddiges, appears to us only a variety 

 of X./raxineum; probably the same as X. (f.) tricarpum. 



1 3fe 2. X. (F.) TRICA'RPUM Michx. The three-fruited Xanthoxylum, or Tooth- 



ache Tree. 



Identification. Michx. Fl. Bor. Amer., 2. p. 335. ; Dec. Prod., 1. p. 726. ; Don's Mill., 1. p. 803. 

 Synonymes. Z. carolinianum Lam., Tor. 8f Gray, 1. p. 214.; Fagara /raxinifblia Lam. III. 1. 



Engravings. Lam. 111., 1. 1. 334. j and our fig. 192. 



Spec. Char., fyc. Leaves pinnate ; the leaflets 3 

 to 5 pairs, and an odd one, all on short stalks, 

 oblong oval, acuminate, finely sawed, oblique at 

 the base. Petioles and branches prickly. Pa- 

 nicles terminal. Petals 5. (Dec. Prod.) A low 

 tree or shrub. North Carolina to Florida. 

 Height 1.0 ft. to 15 ft. Introd. 1806. Flowers 

 greenish ; June. Seeds large, black ; ripe Oct. 



Leaves and bark very aromatic and pungent. 

 Prickles very sharp. The bark of this and the 

 preceding species is imported from New York, 

 and sold in Covent Garden Market as a cure for 

 the rheumatism. Probably a variety of the pre- 

 ceding species. 



192. Xanthdxylum tric&rpum. 



Other Species of Xanthoxylum. X. mite Willd., treated as a species by 

 some authors, is made a synonyme of X.^raxineum by Torrey and Gray, and 

 it probably bears the same relation to that species that Gleditschza inermis 

 does to G. triacanthos. Our opinion is, that there is only one species of the 

 genus in British gardens. 



GENUS II. 



PTE'LEA L. THE PTELEA, or SHRUBBY TREFOIL. Lin. Syst. Monce'cia 

 Tetra-Pentandria. 



Identification. Lin. Gen., No. 152. ; Dec. Prod., 2. p. 8*2. ; Don's Mill., 1. p. 806. 

 Synonymes. Belinda Adans. ; Orme de Samarie, Fr. ; Lederblume^Ger. 

 Derivation. From ptelea, the Greek name of the elm, adopted by Linnaeus. 



Gen. Char. Calyx short, 4 5 parted. Petals 4 5, longer than the caiyx. 

 Male flowers. Stamens 4 5, longer than the petals. Female flowers. 



