264 Eleventh Annual Report 



8. Crataegus viridis Linnaeus. Southern Thorn. Plate 87. 

 Bark gray to light orange; spines uncommon, 2-5 cm. (^-33^ inches) 

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

 (3^2-2 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, 

 sometimes pubescent along the veins beneath; petioles 1-2 cm. 

 (/^-/4 inch) long, slightly winged above; corymbs glabrous, many 

 flowered; flowers appear in May, 1-1.5 cm. (3^-2/3 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. (34 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 examined: Gibson and Knox (Schneck); Posey (Deam). 



9. Crataegus nitida (Engelmann) Sargent. Shining Thorn. 

 Plate 88. Bark dark and scaly; spines occasional, 3-5 cm. (1-2 

 inches) long; leaves oblong-ovate to oval, 3-8 cm. (134-3 inches) 

 long, 2-6 cm. (^-234 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. 

 (/^-M inch) long, shghtly winged above, slightly villous when 

 young; corymbs glabrous, many-flowered; flowers appear in May, 

 1.2-2 cm. (3^-% 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, dark dull red, 

 6-9 mm. (34-3^ 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) . 



10. Crataegus macrosperma Ashe. Variable Thorn. Plate 89. 

 Bark brown, scaly; spines numerous, stout, curved, 2-7 cm. {%-2^ 

 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, 



