’ CHAP, CV. CORYLA‘CER. O’/STRYA. ; 2015 
Genus V. 
O/STRYA Willd. Tus Hor Hornseam. Lin. Syst. Monce‘cia 
Polyandria. 
Si lf inus Lin, and others ; Hopfeubuche, Ger. 
Derivation. from ostryos, @ scale ; in reference to the scaly catkins, 
Description, §c. Low deciduous trees, natives of North America; pro- 
pagated, in British nurseries, by layers, but sometimes by imported seeds. 
€ 1. O. vutea‘ris Willd. The Hop Hornbeam. 
Identification. Willd. Sp. P1., 4. p. 469. 
Synonymes. CArpinus O’strya Hort. Cliff, 447., Roy Lugdb., 80., Mill. Dict,, No. 2., Du Roy Harbk., 
1. p. 127., Lam. Encyc., 1. p.700., N. Du Ham., 2. p. 200.; O’strya carpinifdlia Scop. Carn., No. 
ren: ; O’strya Bauh. Pin., 427., Du Ham. ‘Arb., 5.; O. italica, &c., Michr. Gen., 223. t. 104. 
Engravings. Michx. Gen., t. 104. f. 1, 2. ; Dend. Brit., t. 143. ; N. Du Ham., 2, t. 59. ; our fig. 1939. ; 
and the plate of this tree in our last Volume, 
Spec. Char., §c. Strobiles ovate, pendulous. Leaves ovate, acute. Buds 
obtuse. ( Willd.) A tree, from 30 ft. to 40 ft. in height ; a native of Italy 
and the south of Europe. It was introduced into England before 1724, 
as it is mentioned in Furber’s Nursery Catalogue, published in that year. 
The hop hornbeam, in its general appearance, 
bark, branches, and foliage, bears a great re- 
semblance to the common hornbeam; but is 
at once distinguished from it by its catkins of 
female flowers. These consist of blunt scales, 
or bracteal appendages, which are close, and 
regularly imbricated, so as to form a cylindrical 
strobile, very like the catkin of the female 
hop ; whereas in the common hornbeam the 
bracteas are open and spreading. The tree 
has a very handsome appearance when in fruit ; 
and, in favourable situations, it will attain 
nearly as large a size as the common horn- 
beam. The finest specimen, probably, in Eng- 
land is in the Botanic Garden at Kew, of which 
a portrait is given in our last Volume. There 
are young trees in the Horticultural Society’s 
Garden, and at Messrs. Loddiges’s. The hop hornbeam is commonly 
grafted on the common hornbeam ; but, as the growth of the former is more 
rapid than that of the latter, unless the graft is made immediately above 
the collar, the trunk of the scion becomes too large for that of the stock, 
and the tree is liable to be blown down, or broken over by the wind. 
Propagating by layers, or by seeds, is therefore a preferable mode. 
Statistics. In Scotland, at Bar, ally, was a tree which, in 1780, measured 4 ft. 1 in. in circum. 
ference, and was 60 ft. high. Dr. Walker adds that it was about 60 ft. high, healthy and vigorous, 
and had ripe seeds on it, in tember, when he measured it.] {In France, in the Jardin des Plantes, 
55 years old, it is 37 ft. high, the girt of the trunk 3ft., and the diameter of the head 23 ft.; at 
Scéaux, 10 years planted, it is 20 ft. high; at Colombe, near Metz, 60 years old, it is 40 ft. high, the 
diameter of the trunk 1 ft. lin., and of the head 40 ft. In Germany, in Hanover, in the Gottingen Bo- 
tanic Garden, 20 years planted, it is 20 ft. high, diameter of the trunk 8in., and of the head 10 ft. 
In Cassel, at Wilhelmshoe, 15 years planted, it is 6 ft, high. In Austria, at Vienna, in the Univer- 
sity Botanic Garden, 18 years old, it is 30 ft. high, the diameter of the trunk 5in., and that of the 
head 12 ft. ; in the en of Baron Loudon, 30 years old, it is 18 ft. high, diameter of the trunk I4in. 
and of the head 16 ft. ; at Briick on the Leytha, 60 years old, it is 50 ft. high, the diameter of the 
trunk 2 ft., and of the head 36 ft. In Italy, in Lombardy, at Monza, 24 years old, it is 30 ft. high, the 
diameter of the trunk 1 ft., and of the head 24 ft. The price of plants, in the London nurseries, is 2s. 
ary ne Z are sometimes ripened in the Kew Gardens, and sometimes imported, and are sold at 
Ss. a packe 
¥ 2. O. (v.) vinei’nica Willd, The Virginian Hop Hornbeam, 
Identification. Willd. Sp. PL, 4. p. 469. ; Ait. Hort. Kew., 5. p. 302. 
6 P 
