268 Eleventh Annual Report 



cm. (1/3-^ inch) thick, flesh succulent, edible, calyx lobes persist- 

 ent> erect or spreading. 



Distribution. Nova Scotia and Maine to southeastern Minnesota 

 and south in the mountains to North Carolina and Tennessee. 



Usually a large shrub but occasionally a small tree sometimes 8 

 m. (25 feet) high, with ascending branches. 



Specimens have been seen from the following counties: Clark, 

 Fulton, Madison, Porter, Shelby and Wells (Deam). 



11. Crataegus Jesupi Sargent. Jesup's Thorn. Twin Moun- 

 tain Thorn. Plate 90. Bark grayish-brown; spines stout, straight, 

 2-4 cm. (M-l3^ inches) long; leaves elliptical-ovate, 3.5-7 cm. (13^^-3 

 inches) long, 2-5.5 cm. (1-2 inches) wide, acute or acuminate at the 

 apex, broadly cuneate to truncate-cordate, serrate or doubly serrate 

 with 4 or 5 pairs of acute lobes, yellow-green above, paler beneath, 

 glabrous; petioles slender, 2-3.5 cm. (M-lM inches) long, slightly 

 winged above; corymbs glabrous, many-flowered; flowers appear in 

 May, about 2 cm. (5/6 inch) broad, stamens about 10, anthers 

 dark red, styles and nutlets usually 3 or 4, calyx lobes entire; fruit 

 ripens in October, short-ellipsoidal to pyriform, dark red, slightly 

 angled, lacking bloom when mature, about 1 cm. (^ inch) thick, 

 calyx lobes mostly deciduous, flesh yellow, firm. 



Distribution. Western Vermont to southwestern Wisconsin and 

 south to Pennsylvania and Owen County, Indiana. 



A shrubby tree, sometimes 6 m. (20 feet) high, with ascending 

 branches and a round crown. 



Specimens examined: Owen (Mrs. C. C. Deam). 



12. Crataegus rugosa Ashe. Fretz's Thorn. (C. deltoides 

 Ashe.) Plate 91. Spines numerous, 3-6 cm. (134-23^ inches) long, 

 stout, curved; leaves broadly ovate, 3-7 cm. (1-2^ inches) long and 

 broad, acute or acuminate at the apex, cordate or truncate at the 

 base, serrate or twice serrate with 4-6 pairs of broad acuminate 

 lobes, glabrous, membranaceous; petioles 1-3 cm. {%-l}/i inches) 

 long, glabrous; corymbs many-flowered, glabrous; flowers appear in 

 May, about 2 cm. (5/6 inch) broad, stamens 10-20, anthers pink, 

 styles and nutlets usually 4 or 5, calyx lobes deltoid-acuminate, 

 entire or slightly serrate at the base; fruit ripens in October, de- 

 pressed-globose, bright red, angular, glabrous, waxy, 1-1.5 cm. Q/^r 

 2/3 inch) thick, flesh yellow, somewhat succulent, calyx lobes per- 

 sistent, spreading, the tube rather prominent. 



Distribution. Southwestern New England to southern Indiana 

 and the mountains of North Carolina. 



