ROSACEA 



467 



divided above the middle into short acute, acuminate or rounded lobes, half grown 

 when the flowers open the middle of April, and then glabrous with the exception of a 

 few short caducous hairs along the midribs and veins, and at maturity thin but firm 

 in texture, light green on the upper surface, pale on the lower surface, 1^^ long, 1^' 

 wide, with slender midribs and 5 or 6 pairs of arcuate primary veins spreading to 

 the points of the lobes; their petioles narrowly winged at the apex, usually about f 

 long; on vigorous shoots sometimes rounded or nearly truncate at the base and 1^'- 

 2^' long and broad. Flowers about |' in diameter, on short slender pedicels, in 

 compact few-flowered glabrous compound corymbs; calyx-tube broadly obconic, 

 glabrous, the lobes gradually narrowed from broad bases, acute, entire or sparingly 

 glandular-serrate, tipped with dark red glands, glabrous on the outer, puberulous on 

 the inner surface; stamens 20; anthers purple; styles 3-5, surrounded at the base 

 by a narrow ring of snowy white tomentura. Fruit ripening about the 1st of October 

 and then remaining on the branches for several weeks, on short stout pedicels, in 

 compact few-fruited erect or drooping clusters, subglobose, often rather longer than 



wide, bright red, about y in diameter; calyx prominent, with a well-developed tube 

 and much enlarged closely appressed lobes often deciduous with the tube before the 

 fruit becomes entirely ripe; flesh thin, yellow, dry and mealy; nutlets 3-5, thin, 

 slightly grooved and ridged on the back, ^' long. 



A tree, 20-25 high, with a tall, slender often spiny trunk covered with ashy 

 gray bark nearly black at the base of old trees, spreading and ascending branches 

 forming a rounded or oval usually open head, and thin nearly straight bright red- 

 brown glabrous branchlets becoming gray tinged with red or brown in their second 

 season, and armed with thin nearly straight bright chestnut-brown lustrous spines, 

 I'-ll'long. 



Distribution. Open woods in clay soil in the neighborhood of Greenville, 

 Alabama; common. 



98. Crataegus Robur, Beadl. 



Leaves ovate, oval or obovate, acute or acuminate, entire or sparingly glandular 

 below, finely serrate above, with incurved glandular teeth, and incisely lobed above 

 the middle, with numerous short acute lobes, nearly fully grown when the flowers open 

 at the end of March, and then membranaceous and dark yellow-green and lustrous, 



