197 



10. Crataegus viridis Linnaeus. SOUTHERN THORN. Plate 86. 

 Bark gray to light orange; spines uncommon, 2-5 cm. (%fc-3 34 

 inches) long; leaves oblong-ovate, 2-8 cm. (3/-334 inches) long, 2-5 

 cm. (}/2-2 inches) wide, acute, acuminate or even obtuse at the apex, 

 serrate or doubly serrate, often with acute or obtuse lobes towards the 

 apex, dark green, shining and slightly impressed veined above, some- 

 times pubescent along the veins beneath; petioles 1-2 cm. 0/g-% inch) 

 long, slightly winged above; corymbs glabrous, many flowered; flowers 

 appear in May, 1-1.5 cm. (j^-% inch) broad; stamens about 20; 

 anthers usually yellow, sometimes pink; styles and nutlets 4 or 5; 

 calyx lobes lanceolate-acuminate, entire, slightly pubescent inside; 

 fruit ripens in October, globose or compressed-globose, bright red or 

 orange, glaucous, 4-6 mm. (i^ inch) thick, flesh thin, hard, edible. 



Distribution. Moist, alluvial soil along streams and lakes, south- 

 eastern Virginia to northern Florida and southwestern Indiana to eastern 

 Kansas and Texas. 



A tree from 6-11 m. (20-35 feet) high, with ascending branches and a 

 broad crown. 



Specimens have been examined from the following counties: Dubois 

 (Deam) ; Gibson (Schneck), (Deam); Knox (Schneck); Posey (Beam). 



11. Crataegus nitida (Engelmann) Sargent. SHINING THORN. 

 Plate 87. Bark dark and scaly; spines occasional, 3-5 cm. (1-2 inches) 

 long; leaves oblong-ovate to oval, 3-8 cm. (1^-3 inches) long, 2-6 

 cm. (3^-2 34 inches) wide, acute at the apex, cuneate at the base, 

 coarsely serrate or twice serrate with acute lobes towards the apex, 

 dark green and shining above, glabrous; petioles 1-2 cm. (s/g-^ inch) 

 long, slightly winged above, slightly villous when young; corymbs 

 glabrous, many- flowered ; flowers appear in May, 1.2-2 cm. (3^-M 

 inch) broad; stamens about 20; anthers light yellow; styles and nutlets 

 3-5; calyx lobes lanceolate-acuminate, entire; fruit ripens in October, 

 globose to short-ellipsoidal, darkdull red, 6-9 mm. (34~3 / 2 inch) thick; 

 flesh yellow, mealy, hard. 



Distribution. River bottoms southwestern Indiana to southern 

 Illinois. A tree sometimes 9 m. (30 feet) high, with ascending and 

 spreading branches and a broad crown. 



Specimens have been seen from Gibson (Schneck); Posey (Deam). 



12. Crataegus macrosperma Ashe. VARIABLE THORN. Plate 

 88. Bark brown, scaly; spines numerous, stout, curved, 2-7 cm. 

 (24-224 inches) long; leaves broadly elliptical-ovate to broadly 

 ovate, 2-7 cm. (%-2 ^ inches) long and wide, acute at the apex, 

 rounded, truncate or rarely cordate at the base, serrate or doubly 

 serrate, slightly villous, becoming glabrate, dark yellow-green above, 



