CHAP. XLII. ROSA‘CE®. CRATE'GUS. 831 
comparatively slender, the plant less robust, and the fruit smaller, 
than in the species. It is a very distinct and elegant variety. 
¥ ©. O. 7 pteridifoha, C. pterifolia Lodd. Cat., C. pectinata Hort., 
(fig. 604. in p. 865.) resembles the preceding, but the leaves are 
longer in proportion to their breadth, and more elegantly cut. 
There are only small plants of this very elegant and most inte- 
resting variety in the Fulham Nursery, at Messrs. Loddiges, and in 
one or two other collections. 
* C. O. 8 eriocérpa Lindl., C. eriocarpa Lodd. Cat., ( fig. 607. in p. 865., 
and the plate in our Second Volume) is a robust rapidly growing 
variety, with large leaves, and strong thick shoots; a clear white 
bark, and few thorns. It is very prolific in flowers, and the fruit 
which succeeds them is woolly in its young state, but not large. 
There are fine trees of this very distinct variety in the Horticultural 
Society’s Garden. If ever the hawthorn should be cultivated for 
its timber, to supply the wood engravers as a substitute for box, 
this variety, and C. O. melanocarpa will deserve the preference. 
¥ C. O. 9 purpurea Penny ( Jig. 611. in p. 866.) has large leaves, and 
the young shoots are of a dark purple colour. It was raised from 
seed, some years ago, in the Epsom Nursery, but has not yet 
flowered. 
¥ C. O. 10 Oliveriana; C. Oliveriana Bosc, Dec. Prod., ii. p. 630., and 
Don’s Mill., ii. p. 601.; C. Olivéria Lodd. Cat.; C. orientalis Lodd. 
Cat.; (fig. 606. in p. 865., and the plate in our Second Volume) 
has the leaves small and hoary, and the fruit also small and black. 
It forms a very distinct variety, and is accounted by some a species. 
There are handsome plants of it in the Horticultural Society’s 
Garden. 
¥ C. O. 11 melanocarpa, C. fissa Lee, C. Oxyacantha platyphylla Lodd. 
Cat., C. platyphylla Lindl. in Bot. Reg., t. 1874., (fig. 605. in p. 865., 
and the plate in our Second Volume) also has the fruit black, as the 
name implies, It differs from the preceding variety chiefly in being of 
more vigorous growth, and in having its leaves much less hoary. There 
is a tree of this variety, in the Hammersmith Nursery, of extraordinary 
vigour and beauty ; it has not been above ten or twelve years planted ; 
but it is upwards of 20 ft. high, with a straight smooth-barked 
trunk, and a head 25 ft. in diameter, or upwards, with branches 
depending to the ground on almost every side ; and it is, perhaps, 
the handsomest young hawthorn in the neighbourhood of London. 
This variety flowers at the same time as C. O. eriocarpa, that is, 
about a week after the species ; and the two trees so closely resem- 
ble each other in leaves and habit of growth, that, except when 
they are in fruit, they can only be distinguished by the darker 
colour of the bark of C. O. melanocarpa. 
* C. O. 12 airea Hort., C. flava Hort., (fig. 610. in p. 866.) has the 
leaves like C. O. obtusata, and the fruit roundish, and of a golden 
yellow. This is a very distinct variety, and ought never to be 
omitted in collections. The yellow haw, Hanbury observes, is a 
“ most exquisite plant.” The buds, which are among the first that 
come out in the spring, are of a fine yellow; and the fruit is of the 
colour of gold. The tree is a great bearer, and retains its fruit all 
the winter. There is a fine old specimen of this tree at Syon. 
¥ C. O. 13 aurantiaca Booth is said to have orange-coloured fruit ; but 
there are only small plants of it in the London gardens. Mr. Wil- 
son found, in Ayrshire, a variety with greenish orange fruit. ( Hook.) 
¥ C.O. 14 leucocérpa, a variety with white haws, is said to have been 
discovered in a hedge near Bampton, in Oxfordshire; but we have 
never seenit. According to Hanbury, it is but a paltry tree, an in- 
different bearer, and the fruit is of a dirty white. 
3K 
