MALACEAE 539 



4. Crataegus cordata (Mill.) Ait. A tree 5-10 m. tall, with grayish brown scaly 

 bark, or more often a large spreading shrub. Leaf-blades 2-7 cm. long, broadly ovate, 

 serrate and incisely 3-7-lobed, acute at the apex, truncate or cordate at the base, glabrous : 

 corymbs compound, many-flowered, glabrous : pedicels and hypanthium glabrous : sepals 

 short, triangular, hairy on the margins : stamens 20 : fruit depressed-globose, 4-6 mm. in 

 diameter, bright red or scarlet : nutlets 3-5, the hypostyle upwardly and dorsally extended 

 over the apex. 



In moist rich soil and on banks of streams, Virginia to Georgia, Illinois, Missouri and Tennessee. 



5. Crataegus apiifolia ( Marsh. ) Michx. A shrub, or a small tree, 2-6 in. tall, with 

 smooth gray bark, usually with several crooked stems. Leaf-blades broadly ovate or orbic- 

 ular, 2-4 cm. long, 2-4 cm. wide, acute at the apex, mostly truncate or cordate at the 

 base, pubescent, at least when young, pinnately and deeply 5-7-cleft, the lobes sharply 

 serrate : corymbs subsimple, 3-10-flowered : pedicels and hypanthium pilose-pubescent : 

 sepals lanceolate, usually glandular-serrate and colored at the tips : corolla 10-12 mm. 

 broad : stamens about 20, the anthers pink or purplish : fruit oblong or oval, 4-7 mm. 

 long, scarlet : nutlets 1-3, the hypostyle upwardly and dorsally extended over the apex. 



In low rich soil, swamps and on banks, Virginia to Florida, Missouri and Texas. PARSLEY HAW. 



6. Crataegus spathulata Michx. A shrub or small tree, sometimes 6-8 m. tall, with 

 gray or brown smooth or minutely scaly bark and usually several stems. Leaf-blades 

 spatulate or oblanceolate, 1-4 cm. long, 5-20 mm. wide, narrowed into winged petioles, 

 obtuse or subacute at the apex, the borders crenate or crenate-serrate and frequently in- 

 cisely 2-3-lobed, glabrous or very nearly so, shining above : corymbs compound, many- 

 flowered, glabrous : pedicels, hypanthium and short triangular sepals glabrous : corolla 

 7-10 mm. broad : stamens about 20 : fruit globose, red at maturity, 4-6 ram. in diameter : 

 nutlets 3-5, the hypostyle upwardly and dorsally extended over the apex. 



In moist rich soil and on banks of streams, Virginia to Florida, Missouri and Texas. 



7. Crataegus brachyacaiitha Engelm. & Sarg. A tree 10-15 m. tall, with dark 

 brown rough scaly bark. Leaf-blades oblong-lanceolate, elliptic or ovate, 1-5 cm. long, 

 5-20 mm. wide, crenate-serrate, glabrous when fully grown, acute or sometimes blunt at 

 the apex, contracted at the base, shining above : corymbs many-flowered, compound, gla- 

 brous : pedicels, hypanthium and the exterior surface of the short triangular sepals, gla- 

 brous : corolla 10-12 mm. broad : stamens 15-20 : fruit subglobose, at maturity bright blue 

 with a glaucous bloom : nutlets 3-5, the hypostyle dorsally extended over the apex. 



In moist soil and on borders of swamps and streams, Louisiana and Texas. 



8. Crataegus aestivalis (Walt) T. & G. A tree 5-9 m. tall, or a large shrub with 

 several stems, the bark dark reddish brown, fissured and scaly. Leaf-blades elliptic, 

 oblong, oblong-cuneate or obovate, 2-7 cm. long, 1.5-3 cm. wide, either acute or rounded 

 at the apex, narrowed or contracted below into winged petioles, dentate, sinuate or crenate- 

 serrate, tomentose with a pale or rufous covering when young, becoming in age glabrate or 

 glabrous above, below rufous-tomentose, especially along the midrib and veins : corymbs 

 2-5-flowered, simple : pedicels and hypanthium glabrous : sepals triangular, usually colored 

 near the tips, minutely serrate or entire : stamens about 20, the anthers purple : fruit de- 

 pressed-globose, red at maturity, punctate, 12-15 mm. in diameter : nutlets 3-5, the hypo- 

 style confined to the lateral faces and terminated at the ventral apex. 



In shallow ponds in the pine lands and on low banks of streams, South Carolina to Texas and 

 Arkansas. MAY HAW. 



9. Crataegus maleoides Sarg. A small tree 4-5 m. tall, or more frequently a large 

 shrub with several stems. Leaf-blades oval, obovate or nearly orbicular, those of the 

 shoots usually ovate, 1.5-5 cm. long, 1-4 cm. broad, glabrous or with tufts of hairs in the 

 axils of the veins beneath, acute or rounded at the apex, narrowed or contracted below into 

 short winged petioles, serrate, and at least on the shoots shallowly incised : corymbs sim- 

 ple, 3-5-flowered : -pedicels and hypanthium glabrous : sepals lanceolate, usually colored : 

 stamens 15-20, the anthers purple : fruit subglobose or slightly oval, at maturity red, 8-12 

 mm. thick : nutlets 3-5, the hypostyle confined to the lateral surfaces. 



In wet or moist soil bordering streams, Volusia County, Florida. 



10. Crataegus lucule~nta Sarg. A slender tree 4-5 m. tall, with ashy gray or dark 

 reddish brown bark. Leaf-blades spatulate or cuneiform, frequently ovate or obovate on 

 the shoots, 2-4 cm. long, 1-3 cm.- broad or larger on vigorous branches, cuneate or con- 

 tracted at the base into margined petioles, acute or bluntly pointed at the apex, irregularly 

 serrate and incised, glabrous when fully grown, or with tufts of pale hairs in the axils of 

 the principal veins beneath : corymbs 2-5-flowered, simple : pedicels, hypanthium and 

 lanceolate sepals glabrous : corolla 15-18 mm. broad: stamens 15-20, the anthers purple : 

 fruit globose or subglobose, 8-10 mm. in diameter, orange-red when ripe : nutlets 3-5, 4-6 

 mm. long, the hypostyle 3-4 mm. long. 



In swampy woods, Volusia County, Florida. 



