646 



ARBORETUM ET FRUTICETUM BRITANNICUM. 



lata. Seeds of the eight following kinds are annually imported from America 

 by the London seedsmen, and the plants, in general, come up tolerably true. 

 This may also be said of some of the varieties of which we have only given 

 the names. 



9. F. AMERICANA Willd. The American Ash. 



Identification. Willd. Sp., 4. p. 1102.; Michx. N. Amer. Syl., 3. p. 59. 

 Synonymes. F. acuminata Lam., Don's Mill. 4. p. 56., Pursh Sept. 2. 



Synonymes. F. acuminata Lam 

 white Ash, green Ash, Amer. 



p. 9. ; F. discolor Mnhl. ; 



Engravings. "Michx. N. Amer. Syl., 3. t. 118. ; the plate of this species in Arb. Brit, 

 and out figs. 1254. and 1255. 



1st edit. ; 



1254. F . americkna. 



Spec. Char., $c. Leaflets 7, petiolate, oblong, acuminate, shining above, quite 

 entire, glaucous beneath. Flowers calyculate. (Don's Mill.) A deciduous 

 tree. Canada to Carolina, in woods. 

 Height 60 ft. to 80 ft. Introduced in 

 1723. Flowers greenish yellow; 

 May. Samaras rarely produced. 



Variety. 



f F. a. 2 latifolia has broader 

 leaves than the species. 

 Hort. Soc. Garden, in 1835. 



Early in spring, the leaflets are 

 covered with a light down, which gra- 

 dually disappears, till, at the approach 

 of summer, they are perfectly smooth, 

 of a light green colour above, and 

 whitish beneath. This difference in 

 the colour of the surfaces of the 

 leaflets is peculiar to this species ; 

 and hence it has been named F. dis- 

 color. It is also called the white ash 

 from the colour of its bark, by which 

 it is easily distinguished, in America, 

 from the other sorts indigenous there. 

 In Britain, all sorts of American ash 

 are readily known from .FYaxinus 

 excelsior, by their lighter bark, and by 

 the paler green of their leaves. 1255. *-. amwicana. 



10. F. (A.) PUBE'SCENS Watt. The downy Ash. 



Identification. Walt. Fl. Car., p. 254. ; Pursh Sept., 1. p. 9. : Don's Mill., 4. p. 56. 



Synonymes. F. nigra Du Roi Harbk. ed. 2. vol. 1. p. 398. ; F. tomentbsa Michx. N. Amer. Syl. 3. 



p. 63. ; red Ash, black Ash, Amer. 

 Engravings. Michx. N. Amer. Syl., 3. t. 119. ; and our Jig. 1256. 



