324 



AMYGDALACEAE. 



Vol. II. 



3. Prunus hortulana Bailey. Wild 

 Goose Plum. Fig. 241 1. 



P. hortulana Bailey, Gard. & For. 5 ; 90. 1892. 

 Prunus hortulana Mineri Bailey, Bull. Cornell 

 Agric. Exp. Sta. 38: 23. 1892. 



A small tree, similar to the two preceding; 

 branches spreading, bark thin. Leaves ovate- 

 lanceolate to ovate or oblanceolate, long- 

 acuminate, somewhat peach-like, closely glandu- 

 lar-serrate, glabrous, 4'-6' long; petioles not i' 

 long, usually bearing two glands near the blade ; 

 flowers few in the lateral umbels, expanding 

 before the leaves; pedicels 5"-io" long; calyx- 

 lobes glandular-serrate, pubescent without and 

 within ; drupe subglobose or short-oval, bright 

 red, thin-skinned ; stone swollen, not margined; 

 bloom little or none. 



Indiana to Iowa, Missouri, Kansas and Texas. 

 Hog-plum. Apparently erroneously recorded from 

 farther east, unless as an escape from cultivation. 

 Garden wild plum. April-May. 



4. Prunus angustifolia Marsh. Chickasaw 

 Plum. Hog Plum. Fig. 2412. 



Prunus angustifolia Marsh. Arb. Am. in. 1785. 

 Prunus Chicasa Michx. Fl. Bor. Am. i ; 284. 1803. 

 P. Watsoni Sargent, Gard. & For. 7 : 134. /. 2j. 1894. 



A small tree, sometimes 25° high, the trunk 7' 

 in diameter, the branches somewhat thorny. 

 Leaves lanceolate or oblong-lanceolate, acute at 

 the apex, serrulate, often rounded at the base, gla- 

 brous when mature, i's' long; flowers smaller 

 than those of the preceding species, in lateral 

 umbels, expanding before the leaves ; drupe red, 

 globose, 6"-9" in diameter, nearly destitute of 

 bloom, thin-skinned, its stone ovoid, hardly flat- 

 tened, both edges rounded, one of them slightly 

 grooved. 



In dry soil, southern New Jersey to Florida, west 

 to Arkansas and Texas. Wood soft, reddish-brown ; 

 weight per cubic foot 43 lbs. April. Fruit ripe May- 

 July. 



5. Prunus alleghaniensis Porter. Porter's 

 Plum. Fig. 2413. 



P. alleghaniensis Porter, Bot. Gaz. 2 : 85. 1877. 



A low, straggling shrub or small tree, with 

 maximum height of about 15° and trunk diameter 

 of 5', seldom thorny. Leaves ovate-oblong or 

 obovate, acute or acuminate, finely and sharply 

 serrate, rounded at the base, pubescent when 

 young, glabrous or very nearly so when old; 

 flowers similar to those of P. americana. about 7" 

 broad; drupe globose-ovoid, about s" in greatest 

 diameter, very dark purple with a conspicuous 

 bloom; pulp pleasantly acid; stone slightly flat- 

 tened, a shallow groove on one margin, a slight 

 expansion on the other. 



Barrens of Huntingdon Co., across the Alleghany 

 Mountams to Clearfield Co., Pa. ; southern Connecti- 

 cut. Alleghany sloe. April. Fruit ripe in August. 



