221 



narrowed at the base, abruptly short acuminate toward the apex, smooth 

 or sparsely covered above with a short appressed pubescence, more or 

 less pubescent beneath especially along the veins, usually pubescent 

 on the veins at maturity, margins crenate-serrate, the teeth ending in 

 persistent glands, petioles more or less pubescent on the inner surface, 

 and generally bearing a pair of glands, which number varies from 1 to 3, 

 or sometimes absent; flowers appear in April or May in umbels of 2-3, 

 about 2 cm. in diameter the largest of the genus in Indiana, calyx 

 smooth, the lobes smooth without and within, except toward the base 

 which is pubescent, the lobes reddish and the margins studded with 

 numerous red glands; fruit ripens in July, globose, red; stone short 

 oval and very flat. 



Distribution. New Brunswick to Massachusetts and west to 

 Minnesota and south to central Indiana. In Indiana it is definitely 

 known only from Wells, Blackford and Marion Counties. No doubt it 

 ranges throughout the northern part of Indiana, but it has not been 

 separated from Prunus americana. Higley and Raddin 1 in 1891, when 

 our text books did not separate this species, in a flora which included a 

 part of Lake County Indiana, remark: "There are two distinct forms of 

 Prunus americana; one with slender branches and large flowers with 

 glandular calyx, found in swamps and another found with stout 

 branches and much smaller flowers with the calyx less glandular, grows 

 in dry soil." This no doubt refers to the species under discussion. 



In 1898 the author found this species growing in a swamp in Wells 

 County, and transplanted a specimen to high ground in his orchard. It 

 has persisted ever since, growing vigorously and freely suckering from 

 the roots, but it has been quite susceptible To the San Jose scale. 



4. Prunus hortulana Bailey. WILD GOOSE PLUM. Plate 102. 

 Small trees with bark exfoliating in plates or rolls on old trees; twigs 

 smooth; leaves oblong-oval, oval, slightly ovate or obovate, generally 

 6-11 cm. long and 2.5-5.5 cm. wide, rounded and often slightly oblique 

 at the base, acuminate at the apex, margins finely serrated with short 

 rounded and glandular teeth, generally glossy and smooth above, 

 more or less pubescent all over beneath with long hairs, the midrib 

 and lateral veins usually prominent below, petioles pubescent on the 

 inner face and usually bearing one or more glands; flowers appear with 

 the leaves in April or May in umbels of 2-4; calyx glabrous, the lobes 

 glabrous on the outer face, and more or less pubescent within, margins 

 glandular; fruit ripens in August, generally globose, red; stone generally 

 short oval, very turgid, face reticulated. 



iHigley and Raddin: Flora of Cook County Illinois and a part of Lake County 

 Indiana. Bui. Chic. Acad. Sci. Vol. 2:33:1891. 



