922 ARBORETUM ET FRUTICETUJM BRITANNICUM. 



A. Botanical Varieties, 

 s!i C. A. 1 sylvestris Ait. C. Jvellana Svensk., Eng. Bnf. t. 723. ; C. syl- 



vestris Bauh. Pin. 418., and our ^g. 1720. The common hazel 



nut, in a wild state. 

 a^ C. A. 2 pumila. C. pumila Lodd. Cat. ed. 1836. Rather dwarfer than 



the species. 



^ 



1720. C. A. sjlve^tris. 1721. C. A. heterophyila. 



* C. A. 3 keterop//j//la. C. hcterophylla Lodd. Cat. ed. 1836 ; C. laciniata 



Uort. ; C. ?(rcicif61ia Hort. ; the various, or Nettle, leaved Hazel. 



(Our fig. 1721.) The leaves variously cut, and thickly covered 



with hairs. 

 at C. A. i purpurea. C. purpurea Lodd. Cat.ed. 1836 ; C. atro-purpurea 



Hort. The leaves of a dark red or purple. A very striking variety. 



If grafted standard high on C. 6'olurna this would make a most 



singular and beautiful small tree. Grafted on the conmion hazel, 



it imparts its colour to the leaves of the stock. 



B. Varieties cultivated for their Fruit. 



The cultivated hazels are of two kinds ; viz. nuts and filberts. The 

 former are distinguished by the shortness of their calyxes, or husks, 

 and the latter by their length; but, in consequence of the numerous 

 crosses between these two classes of varieties, the distinction can scarcely 

 now be kept up. The term filbert is supposed, according to some, to 

 be a corruption of full beard, alluding to the husk. 



In the Horticultural Society s Catalogue of Fruits, 31 sorts of nuts and 

 filberts are enumerated; but the kinds best deserving of culture for their 

 fruit, and also as ornamental shrubs or low trees, are considered by Mr 

 Thompson to be only the five following : 



afc C. A. 5 tubulosa. C.tubulosa Willd. Abbild. t. 152., and our fig. 172.3.; 

 C. maxima Mill. Diet.; C. sativa Bauh. ; C. s. rubra Ait.; red Fil- 

 bert, Hort. Soc. Cat. No. 18.; Langbartnuss, or Lambertsnuss, 

 Ger.; Noisetier franc a fruit rouge, Pw7. et Turp. Arb. Fruit. 11. 

 Long tubular calyx, contracting so much beyond the apex of the 

 fruit, as to prevent its falling out. 



at C. A. 6 tubulosa alba. C. sativa alba Ait.; C. A. alba Lodd. Cat. ed. 

 IS36 ; white Filbert, Hort. Soc. Cat. No. 19. ; weisse Langbartnuss, 

 Ger. Only differs from the preceding variety in having the pellicle 

 of its kernel white. 



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