1. Carrière Rev. Hort. 111. 1872.[109]
Tree small, of medium vigor, upright, dense, hardy except in exposed locations, unproductive; branches stocky, long, rough, thickly strewn with small lenticels; branchlets slender, long, with internodes of medium length, reddish, glabrous; leaf-buds intermediate in size, short, obtuse, free.
Leaves folded upward, oblong-lanceolate to obovate, peach-like, narrow, long, of medium thickness; upper surface dark green, smooth, shining, lower surface pale green, not pubescent, with prominent midrib; margin slightly crenate; petiole short, thick, faintly tinged red, often with four large globose glands on the stalk.
Flower-buds numerous on one-year wood although found on spurs on the older wood; flowers appearing very early, semi-hardy, small, pinkish-white; borne singly or in pairs, often defective in pollen.
Fruit maturing early; one and three-quarters by two and one-quarter inches in size, strongly oblate, compressed; cavity deep, wide, flaring, regular, often slightly russeted; suture variable in depth, frequently swollen near the apex which is flattened or strongly depressed; dark red or purplish-red, overspread with waxy bloom; dots numerous, small, dark colored, with russet center, inconspicuous; stem thick, characteristically short being often one-quarter inch long; skin of medium thickness, tough, bitter, adhering to the pulp; flesh rich yellow, medium juicy, tough, firm, very mild sub-acid with a peculiar aromatic flavor; of fair quality; stone clinging, about seven-eighths inch in diameter, roundish, flattened to rather turgid, truncate at the base, tapering abruptly to a short point at the apex, with characteristic rough surfaces; ventral suture narrow, acute or with distinct wing; dorsal suture very blunt or acute, not grooved.
All that is known of the history and habitat of this species is that it came from China in 1867 having been sent to the Paris Museum of Natural History by Eugene Simon, a French consul in China. The spontaneous form has not as yet been found. The general aspect of the tree is more that of the peach than the plum and the drupes are as much like apricots or nectarines as plums but when all characters are considered the fruit can better be classed with the plums than with any of the other stone-fruits named.
Prunus simonii has been widely grown in America both for its fruits and as an ornamental, but it cannot be said that it has become popular for either purpose and only one variety of the species is now under cultivation. As a food product the plums lack palatability and as ornamentals the trees are subject to too many pests. Prunus simonii has been successfully hybridized with Prunus triflora and as secondary crosses its blood has been mingled with that of some of the native species as well. Most of its hybrid offspring have more value than the parent, nearly all of them lacking its disagreeable taste. According to an article published in Revue Horticole[110] a new form of the Prunus simonii was produced in 1890 from a bud sport, the fruit of which is elongated, a little cordate, slightly unequal, and grooved on one side. So far as can be learned this sport has no very decided merits as a horticultural plant.
10. PRUNUS AMERICANA Marshall
