European nurserymen now and then offer trees of the Spinosa plum for fruit-growing, sometimes with the statement that the fruit is sweet. But pomologists do not speak highly of these cultivated Spinosas and hold that they are hardly worth cultivation. The wild plums are quite commonly picked for certain markets in Europe, however, especially those in which the Domesticas and Insititias are not common. With plenty of sugar the fruits make a very good conserve. In France the unripe fruit is pickled as a substitute for olives and the juice of the ripe fruit is sometimes used to make or adulterate cheap grades of port wine. In the country districts of Germany and Russia the fruit is crushed and fermented and spirit distilled from it. The species is quite variable within limits, but since the wild fruits have been used from the time of the lake-dwellers of central Europe, without the appearance of desirable forms, the variations are not likely to give horticultural varieties worth cultivating for table use. The variations in the fruit are usually in color, the size and flavor changing but little. Several ornamental forms are in cultivation, of which the chief ones have been named. =4.= =PRUNUS CURDICA= Fenzl and Fritsch. =1.= Fenzl and Fritsch _Sitzb. Akad. Wien._ Bd. CI. =1=:627. 1892. =2.= Schneider _Handb. Laubh._ =1=:628. 1906. The few herbarium specimens that the writer has seen of this species from southeastern Europe strongly resemble _Prunus spinosa_ but Schneider in the above reference describing it from living specimens says that it differs from the species last named as follows: “Lower growth, about one-half as high, spreading squarrose ramification, much less thorniness; leaves more like _domestica_, when young hairy on both sides, later above nearly and underneath more or less glabrous; petiole shorter, not exceeding one cm.; blooms later, nearly with the leaves, white, about twenty-two mm. in diameter, borne almost always single in this species; pedicel finely pilose, in _Prunus spinosa_ almost glabrous; stamens fewer, about twenty; fruit blue black, stem longer, exceeding twelve mm.” So far as appears from the few and scant European references to the species it has no horticultural value. =5.= =PRUNUS COCOMILIA= Tenore. =1.= Tenore _Fl. Neap. Prodr._ Suppl. =2=:68. 1811. =2.= Schneider _Handb. Laubh._ =1=:628. 1906. Tree shrub-like, top thick, broadly ovate; branches drooping, shoots short; branchlets glabrous, young wood olive or reddish-brown. Buds small, roundish-ovate; leaves roundish-obovate, sharply and distinctly serrated, glabrous or upon the ribs on the under side sparsely pubescent. Flowers usually in pairs, opening before or with the leaves, greenish-white, pedicels about the length of the calyx-cups. Fruit yellow, agreeable.