54 ELISHA MITCHELL SCIENTIFIC JOURNAL 



Inflorescence a 5-10-flowered slightly compound glabrous 

 corymb; stamens 10, Fruit, borne in simple few-fruited 

 clusters, is globose-. 12-13 mm thick, green, russet and dull 

 red. capped by the narrowly triangular, ascending-, dry, sub- 

 eutire lobes; flesh pale yellow, finn; seed usually 3, 7-8 mm 

 long-, with shallow furrows on the broad rounded back. 



Hillsides. Milan. Ohio. While this plant has characters 

 which ally it to the Pruinosae. as is the case also with the 

 preceding, it is probably best placed with the Tenuifoliae. 



PRUIXOSAK. 



Crataegus ingrata. A bushy tree, 3-5 m in height, with 

 red-brown twigs, occasionally slightly pubescent the first 

 spring", but glabrous by fall, armed with numerous short 2-4 

 cm-long stout thorns. Leaves thin, pale green, pubescent 

 below, especially on the viens. when young, ovate or broadly 

 ovate, the blades 5-9 cm long, lobed above the middle with 

 few very short teeth, rounded at the base, sharply serrate, 

 petiole slender, pubescent. 3-4 cm long. Flowers, appearing 

 about May 18th. in nearly simple 5-10-flowered, pubescent 

 corymbs, are about 18 mm wide: stamens 20. anthers white. 

 Fruit, borne in simple clusters on slender 2-3 cm-long pedicels, 

 is subglobose, 12-14 mm thick, dull red; tube slightly project- 

 ing, the narrow lobes reflexed <>r deciduous: seed 3-5. the 

 large ones ridged on the back. 7-8 mm long, narrowed at the 

 base. 



Near Pittsburg, Pennsylvania. J. A. Shafer, May 18, and 

 October 26, 1902. J. A. Shafer and W. W. Ashe, September. 

 1901. 



Crataegus sitiexs. A stoloniferous shrub, seldom arbor- 

 escent, forming thickets 2-4 m in height with thorny nearly 

 black scaly bark and very slender brown-purple geniculate 

 twigs, fully armed with slender 3-4 cm-long" thorns. Leaves 

 glabrous, thin, broadly ovate, truncate or rounded at the very 

 broad base. 3-5 cm long and wide, with many pairs of deep 

 lobes above the base, coarsely serrate. Petioles slender. 2-3> 



