ROSACEA 



519 



on the inner surface ; petals linear, orbicular, contracted at the base into short claws. 

 Fruit ripening from July to September, on slender pedicels ^' to nearly 1' long, 

 globose, without a basal depression, about ^' in diameter, with a tough thick black 

 skin covered with a glaucous bloom, thick acid flesh, and a flattened stone, with thin 

 brittle walls, ^' long, j-j-q' wide and half as thick, acute at the ends, slightly rugose, 

 conspicuously ridged on the ventral, and slightly grooved on the dorsal suture. 



A tree, sometimes 15-20 high, with a short often crooked or inclining trunk 

 6'-10' in diameter, slender unarmed branches forming a wide compact flat-topped 

 head, and slender branchlets more or less densely coated at first with pale pubes- 

 cence, soon becoming glabrous, lustrous, and bright red, and in their second year dark 

 dull brown and marked by occasional orange-colored oblong lenticels; or frequently 

 a low shrub. Winter-buds about ^Ig' long, with acute chestnut-brown apiculate 

 scales, those of the inner rows at maturity \' long and red at the apex. Bark 1' 

 thick, dark brown, separating into small appressed persistent scales. Wood heavy, 

 hard, close-grained, dark reddish brown, with thick lighter colored sapwood of about 

 30 layers of annual growth. The fruit is used in large quantities in making jellies 

 and jams. 



Distribution. Sandy bottom-lands and along the borders of the forest of Long- 

 leaved Pine; South Carolina to Mosquito Inlet, Florida, usually in the neighborhood 

 of the coast, and from Tampa Bay to western Louisiana and southern Arkansas. 

 Variable in the amount of its pubescence and slightly variable in the shape of the 

 fruit, and passing into 



Prunus umbellata, var. injucunda, Sarg. 



A small tree, with branchlets at first hoary-tomentose, becoming pubescent and in 

 their second season puberulous, villose pedicels, calyx, and ovary, leaves more or less 

 tomentose below, and subglobose to short-oblong fruit. 



P^.^c^G 



Distribution. Base of Stone Mountain and Little Stone Mountain, De Kalb 

 County, central Georgia. 



8. Prunus tarda, Sarg. Sloe. 



Leaves oblong or occasionally somewhat obovate, acute or acuminate and short- 

 pointed at the apex, gradually narrowed and rounded or cuneate at the base, finely 



