922 ARBORETUM ET FRUTICETUM BRITANNICUM. 
A. Botanical Varieties. 
% C. A. 1 sylvéstris Ait. C. Avellana Svensk., Eng. Bot. t. 723.; C. syl- 
véstris Bauh, Pin, 418., and our jig. 1720.— The common hazel 
nut, in a wild state. 
% C. A. 2 piimila. C. phmila Lodd. Cat. ed. 1836. — Rather dwarfer than 
the species. 
1720. C. A. sylvéstris. 1721. c. A. heterophylla. 
& C. A. 3 heterophylla. C. heterophylla Lodd. Cat. ed. 1836 ; C. laciniata 
Hort.; C. uricifolia Hort.; the various, or Nettle, leaved Hazel. 
(Our fig. 1721.) — The leaves variously cut, and thickly covered 
with hairs. 
& C. A. 4 purpurea. C. purptrea Lodd. Cat, ed. 1836 ; C. atro-purpurea 
Hort.— The leaves of a dark red or purple. A very striking variety. 
Tf grafted standard high on C. Colarna this would make a most 
singular and beautiful small tree. Grafted on the common 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 : — 
2 C. A. 5 tubuldsa, C.tubuldsa Willd. Abbild. t. 152., and our fig. 1723.; 
C. maxima Mill, Dict.; C. sativa Bauh.; C. s. ribra Ait.; red Fil- 
bert, Hort. Soc. Cat. No. 18.; Langbartnuss, or Lambertsnuss, 
Ger.; Noisetier franc a fruit rouge, Poit. et Turp. Arb. Fruit. 11. 
— Long tubular calyx, contracting so much beyond the apex of the 
fruit, as to prevent its falling out. 
& C. A. 6 tubuldsa alba. C. sativa alba Ait.; C. A. Alba Lodd. Cat. ed. 
1836 ; white Filbert, Hort. Soc. Cat. No. 19.; weisse Langbartnuss, 
Ger.— Only differs from the preceding variety in having the pellicle 
of its kernel white. 
