560 MALACEAE 



mm. long, at maturity yellow-green or orange, flushed with red : nutlets 3-5, 5-6 mm. 

 long, about 4 mm. deep, the hypostyle about 4 mm. long. 

 In sandy soil, southwestern Georgia and adjacent Florida. 



130. Crataegus geniculata Ashe. A shrub 1-4 m. tall, with dark rimose bark and 

 drooping branches. Leaf-blades cuneate or spatulate, or on vigorous shoots obovate, 1-3 

 cm. long, 5 mm. -2 cm. wide, in age glabrate or pubescent on both surfaces, especially 

 along the midrib and principal veins beneath, rounded or pointed at the apex, wedge- 

 shaped or more abruptly contracted at the base, the borders dentate and often broken by 

 shallow lobes ; petioles 5-15 mm. long, glandular : corymbs 2-3-flowered or flowers soli- 

 tary : pedicels and hypanthium tomentose : sepals 4-5 mm. long, glandular-serrate : sta- 

 mens 20 : fruit pyriform, 7-12 mm. thick, 8-14 mm. long, at maturity yellow or orange, 

 blotched or cheeked with red : nutlets 3-5, 5-6 mm. long, the hypostyle about 4 mm. long. 



On dry hills, middle North Carolina. 



131. Crataegus pexa Beadle. A shrub 1-3 m. tall, with spiny branches. Leaf- 

 blades cuneate or spatulate, 1-2 cm. long, 7-15 mm. wide, or larger on vigorous shoots, 

 and varying from obovate to broadly ovate, frequently broader than long, pubescent, 

 rounded, pointed or lobed at the apex, wedge-shaped or more abruptly contracted at the 

 base, the margins dentate or crenate ; petioles very short, 1-10 mm. long, glandular, 

 pubescent : corymbs 2-3-flowered, or flowers solitary : "pedicels and hypanthium tomentose : 

 sepals about 4 mm. long, glandular-serrate : corolla 10-15 mm. wide : stamens about 20 : 

 fruit globose, 7-9 mm. in diameter : nutlets 3-5, about 6 mm. long, the hypostyle about 4 

 mm. long. 



In dry woods and on ridges, Rowan County, North Carolina. 



132. Crataegus Yadkinensis Ashe. A shrub, or a small tree 3-7 m. tall, with ashy 

 gray or brownish bark. Leaf-blades obovate, spatulate or cuneiform, 1.5-3 cm. long, 7 

 mm. -2 cm. wide, or on vigorous shoots larger and suborbicular in outline with rounded or 

 truncate bases, either rounded or short-pointed at the apex, narrowed or contracted at the 

 base, the borders denticulate, glandular, often shallowy lobed above the middle ; petioles 

 3 mm.-l cm. long, pubescent, glandular : corymbs mostly 2-5-flowered : pedicels and 

 hypanthium pilose-puoescent : sepals 3-4 mm. long, glandular-serrate : corolla 12-15 mm. 

 wide : stamens about 20 : fruit pyriform or nearly so, 7-10 mm. thick, at maturity red or 

 orange-red : nutlets 3-5, about 6 mm. long, the hypostyle occupying about three-fourths of 

 the ventral angle. 



In dry woods and on ridges, Rowan County, North Carolina. 



133. Crataegus mu n da Beadle. A small shrub, 1-1.5 m. tall, with spiny, drooping 

 branches. Leaf-blades obovate, spatulate or cuneate, 1-2 cm. long, 4 mm. -1.5 cm. wide, 

 glabrate in age, rounded or abruptly pointed at the apex, narrowed or contracted at the 

 base, the borders dentate, glandular ; petioles very short, 2-7 mm. long, glabrous or with 

 a few hairs at maturity : corymbs 2 or 3-flowered, or flowers solitary : pedicels and hypan- 

 thium pubescent : sepals 3. 5-5 mm. long, serrate or glandular-serrate: stamens normally 

 20 : fruit pyriform, 7-9 mm. thick, 9-12 mm. long : nutlets 3-5, about 7 mm. long, 3-4 

 mm. deep, the hypostyle about 5 mm. long. 



In sandy pine lands, South Carolina and Georgia. 



134. Crataegus invicta Beadle. A shrub 1-1.5 m. tall, with zigzag, recurved and 

 very spiny branches. Leaf-blades cuneate or spatulate, or on vigorous shoots obovate or 

 broadly ovate, 5 mm. -2 cm. long, 3 mm.-l cm. broad, or wider on the shoots, glabrate 

 or slightly pubescent above, pubescent, especially along the veins beneath, either rounded, 

 pointed or shallowly lobed at thex apex, wedge-shaped at the base, the borders dentate, 

 glandular ; petioles very short, 2-7 mm. long, pubescent, glandular : corymbs 2- or 3-flow- 

 ered, or flowers solitary : pedicels and hypanthium tomentose : sepals 3-4.5 mm. long, 

 glandular-serrate : stamens normally 20 : fruit pyriform, 6-8 mm. wide, 8-11 mm. long : 

 nutlets 3-5, about 7 mm. long, 3-4 mm. deep, the hypostyle about 6 mm. long. 



In sandy soil, southeastern Georgia. 



135. Crataegus uniflora Muench. A shrub 1-3 m. tall. Leaf-blades obovate or ob- 

 long-cuneiform, 1.5-4 cm. long, 7 mm. -2 cm. wide, glossy on the upper surface, pubescent 

 beneath, especially along the midrib and principal veins, mostly obtuse at the apex, wedge- 

 shaped or contracted at the base, the borders crenate or crenate-serrate ; petioles very short, 

 pubescent : flowers mostly solitary : pedicels and hypanthium hirsute-tomentose : sepals 

 lanceolate, deeply incised, glandular, 6-9 mm. long : corolla 10-15 mm. wide : stamens 

 20, the anthers almost white : fruit globose, 10-14 mm. in diameter, yellow or greenish 

 yellow at maturity : nutlets 3-5, about 7 mm. long, the hypostyle about 5 mm. long. 



In woods and on slopes, or in old fields and sandy flats, southern New York to Florida and Louisiana. 



