CHAP. VIII. BERBERA CEZ. BE’RBERIS. 303 
corn. The berberry mildew, when magnified, is found to consist of anumber of 
small orange cups, with a white film over each. When ripe these films burst, 
and the tops of the cups assume a ragged uneven appearance, in which state 
they look like white Fiangi. The cups are filled with 47 
innumerable little cases, containing seeds, or sporules, 
and these constitute the bright orange powder that 
is seen on the leaves and flowers of the common ber- 
berry. ‘ Among the many beautiful objects that are 
to be met with in the lower and more imperfect tribes 
of plants,” Dr. Lindley observes, “ it is difficult to find 
one more worthy of an attentive examination than the 
AEcidium Berbéridis.” The blight on corn is generally 
a species of Urédo, and does not correspond in bo- 
tanical characters with the AEcidium. 
Propagation and Culture. The original species is propagated in the nur- 
series by seeds, and the varieties by suckers, For ordinary purposes, no plant 
requires less culture ; but, to produce large fruit, it should be planted in a deep, 
well manured, somewhat calcareous soil, and be constantly freed from side 
suckers. The racemes of the blossoms, also, should be thinned out, in order 
by reducing the number of bunches of fruit, to increase its size. When the 
berberry isintended to become an ornamental tree, it should be trained with 
a straight stem to the height of 8 ft. or 10 ft., and then suffered to branch out, 
thinning out the shoots where necessary, and destroying every sucker as it ap- 
pears. So treated, it forms a singularly beautiful small tree, of great duration. 
Diseases, §c. The common berberry is very subject to the mildew, AZcidium 
Berbéridis Pers., before described. 
Statistics. The berberry is to be found in all European gardens that pretend 
to have a complete collection of fruit trees, and in most shrubberies. The 
original species is to be procured in all nurseries, and the varieties in some of 
them. Seedlings of the species, in the London nurseries, are 8s. a thousand ; 
and transplanted plants 25s. a thousand: at Bollwyller, the varieties are a 
franc each ; plants of the species, 50 cents each: in New York, ?. 
2% 3. B. canape’nsis Mill. The Canadian Berberry. 
Identification. Pursh’s Fl. Amer., Sept., 1. p. 219.; Nutt.Gen. Amer., 1. 210. ; Dec. Prod., 1. p. 106. ; 
Don’s Mill, 1. p. 115. 
Ten. ew vulgaris Mz. Fl. Bor. Amer. 1. p. 205.; B. vulgaris var. canadénsis Martyn’s 
., No. 1. 
Engraving. Hayne Abbild., t. 63. ; and our jig. 48. after that author. 
Spec. Char., §c. Spines 3-parted. Leaves obovate-oblong, 
remotely serrated, upper ones nearly entire. Racemes = 
many-flowered, nodding. (Don’s Mill.,i. p.115.) A shrub, 
or low tree, with yellow flowers, from April to June. Cul- 
tivated in 1759. “Height 5ft. It is found in North Ame- , 
rica, on fertile hills and among rocks, especially in the 
Alleghany Mountains, from Canada to Carolina, and also 
in Tennessee. The berries are said by Pursh to be more 
fleshy and less acid than those of B. vulgaris. The same 
opinion prevails in the United States as in England, as 
to the berberry producing mildew on wheat. From the 
appearance of this alleged species in the garden of the London Horticultural 
Society, we are induced to consider it only a variety of B. vulgaris. De 
Candolle thinks it for the most part intermediate between B. vulgaris and 
B. chinénsis. Plants, in London, are 1s. 6d. each; at Bollwyller, 1 franc ; 
and in New York, 15 cents. 
% 4, B.emareina‘ra Willd. The emarginated-petaled Berberry. 
Identification. Willd. Enum., 1. p. 395. ; Dec. Prod., 1. p. 105.; Don’s Mill., 1. p. 115. 
nonyme. Ausgerandete (serrated) Berberitze, Ger. 
vings. Wayne Abbild., t. 62.; and our fig. 49. : 
Spec. Char, §c. Spines 3-parted. Leaves lanceolate-obovate, ciliately serrated. 
Z 
