546 MALACEAE 



lanceolate, serrate or nearly entire : corolla 15-18 inm. wide : stamens 20, the anthers 

 nearly yellow : fruit oval or subpyriform, 6-8 mm. thick, 8-11 mm. long, at maturity red 

 or ruddy, the flesh firm : nutlets 2-3, rarely more, 5-6 mm. long, the hypostyle about half 

 as long. 



On wooded slopes, near Greenville, Alabama. 



48. Crataegus incilis Beadle. A tree 5-7 m. tall, with a trunk sometimes 1.5 dm. 

 in diameter, or often a large shrub with one or several stems. Leaf-blades ovate, ovate- 

 oblong or oval, 2-7 cm. long, 1-5.5 cm. wide, glabrous, acute at the apex, narrowed or 

 abruptly contracted at the base, or those of the shoots rounded or truncate, the borders 

 irregularly serrate, incisely 6-10-lobed or cleft : corymbs 5-10-flowered, subsimple : pedicels 

 and hypanthium glabrous : sepals 3-4 mm. long, usually serrate near the summit : corolla 

 14-18 mm. wide : stamens about 20, the anthers purple : fruit globose, 5-9 mm. in diam- 

 eter, at maturity red or red and green, the flesh firm : nutlets 3-5, 5-6 mm. long, the 

 hypostyle about half the length of the ventral angle. 



On borders of swamps and in low grounds, usually in clay soil, Evergreen, Alabama. 



49. Crataegus illustris Beadle. A small tree or shrub 3-6 m. tall, with scaly rough 

 bark of a dark gray or brownish color. Leaf-blades broadly ovate or oval, 3-5 cm. long, 

 2.5-5 cm. broad, glabrous, acute or obtusely pointed at the apex, rounded at the base, the 

 borders serrate and mostly with rounded, lobe-like incisions ; petioles 1-2.5 cm. long, mar- 

 gined : corymbs simple, 3-6-flowered : pedicels glabrous, 7-13 mm. long : hypanthium gla- 

 brous : sepals triangular-lanceolate, about 3 mm. long, serrate or nearly entire : corolla 

 14-18 mm. wide : stamens 20, the anthers dark purple : fruit depressed-globose, about 1 

 cm. in diameter, the flesh firm : nutlets 3-5, 6-7 mm. long, the hypostyle about half as long. 



On gravelly hills, near Meridian, Mississippi. 



50. Crataegus opinia Beadle. A tree 4-7 in. tall, sometimes with a trunk 2 dm. 

 in diameter, clothed with ashy gray scaly bark, or frequently a much-branched shrub with 

 one or more stems. Leaf-blades oval, ovate or orbicular, 2-5 cm. long, 1.5-5 cm. broad, 

 glabrous when fully grown, acute at the apex, contracted, or on leading shoots rounded or 

 subtruncate at the base, the borders serrate and incisely lobed : corymbs simple, bracteate, 

 3-7-flowered : pedicels and hypanthium glabrous : sepals 2-3.5 mm. long, entire or spar- 

 ingly glandular-serrate : corolla 14-18 mm. wide : stamens 20, the anthers dark purple : 

 fruit globose, 5-8 mm. in diameter, at maturity bright red, the flesh firm : nutlets 3-5, 

 3.5-4.5 mm. long, 2.5-3 mm. deep, the hypostyle about 2 mm. long. 



In low woods and moist soil, Greenville, Alabama. 



51. Crataegus assimilis Beadle. A small tree or large shrub 3-6 m. tall, with dark 

 gray or brownish scaly bark. Leaf-blades ovate or oval, 2-5 cm. long, 1.5-4 cm. wide, 

 glabrous, acute at the apex, contracted or rounded at the base, the borders serrate and with 

 rounded, lobe-like incisions ; petioles 7-20 mm. long, margined : corymbs simple, 3-6- 

 flowered : pedicels and hypanthium glabrous : sepals triangular-lanceolate, 3-4 mm. long, 

 serrate or nearly entire : corolla 15-18 mm. wide : stamens 20, the anthers pale purple : 

 fruit globose, 7-9 mm. wide, the flesh firm : nutlets 3-5, about 6 mm. long, the hypostyle 

 occupying a trifle more than half the ventral angle. 



On hills and in dry woods, near Chattahoochee, Florida. 



52. Crataegus robur Beadle. A tree, sometimes 7-8 m. tall, with a trunk 1-1.5 dm. 

 in diameter, clothed with gray or brownish scaly bark, or more often a large shrub with 

 one or more stems. Leaf-blades ovate, oval or short obovate, 3-6 cm. long, 1.5-4 cm. 

 broad, or wider on leading shoots, glabrous, acute at the apex, narrowed or contracted, or 

 on vigorous shoots rounded or subtruncate at the base, the borders serrate and incisely 

 lobed or acutely cleft : corymbs simple or subsimple, 3-10-flowered, glandular-bracteate : 

 pedicels 1-2 cm. long, like the hypanthium, glabrous : sepals lanceolate, 3-4 mm. long, 

 entire or sparingly serrate : corolla 15-18 mm. wide : stamens 20, the anthers pale purple : 

 fruit subglobose, 7-9 mm. wide, the flesh firm : nutlets 3-5, 5-6 mm. long, the hypostyle 

 about 4 mm. long. 



In woods and on borders of fields, Tallahassee, Florida. 



53. Crataegus concinna Beadle. A shrub 2-4 m. tall, with dark gray scaly bark. 

 Leaf-blades ovate-lanceolate, oblong or elliptic, those of the shoots ovate, 2-5 cm. long. 7 

 mm. -2 cm. wide or on the shoots 3-4 cm. wide, glabrous, acute or bluntly pointed at the 

 apex, narrowed or contracted or on leading shoots, rounded at the base, the borders serrate and 

 more or less incised, the lobes or incisions rounded or on the larger leaves, acutely notched : 

 corymbs simple, glandular-bracteate, 3-6-flowered: pedicels and hypanthium glabrous: 

 sepals triangular-lanceolate, mostly serrate, 3-4 mm. long : corolla 15-18 mm. wide : sta- 

 mens 20, the anthers purple : fruit subglobose, 7-8 mm. thick, the flesh firm : nutlets 3-5, 

 about 5 mm. long, the hypostyle about half the length of the ventral angle. 



tn woods and about borders of swamps, western Florida. 



