THE CANADA PLUM.
P. nigra., Ait.
The Canada plum (see illustration, page 151) whose range dips down into the northern tier of states, is so near like the previous species as to be called by Waugh a mere variety. Its leaves are broad and large, and the flowers and fruit larger. A peculiarity of blossoming time is that the petals turn pink before they fall. This tree furnished the settler with a relish for his hard fare, and the horticulturist a hardy stock on which to graft scions of tenderer and better varieties of plums. It is a tree well worth bringing in from the woods to set in a bare fence-corner that will be beauti fied by the blossoms in spring, and in late summer by the bright orange-colored fruit against the ruddy foliage.
Exotic plums have greatly enriched our horticulture, giving us fruits that vie with the peach in size and luscious ness. In New-England gardens, the damsons, green gages and big red plums are imported varieties of the woolly twigged, thick-leaved European, P. domestica, which re
fused utterly to feel at home on its own roots in the great middle prairies of the country. These European plums have found a congenial home in the mild climate of the West Coast.
Japan has furnished to the Middle West and South a hardy, prolific species, P. triflara, generally immune to the black knot, a fungous disease which attacks native plums. Crosses between the Japanese and American native plums promise well. California now ranks first in prune raising as an industry, with France a close second. Prunes are the dried fruit of certain sweet, fleshy kinds of plums. Many cultivated varieties of Japanese plums have enriched the horticulture of our West Coast.
The almond, now grown commercially in California, is the one member of the genus prunus whose flesh is dry and woody, and whose pit is a commercial nut.