410 



TREES OF NORTH AMERICA 



deeply tinged with red and covered with pale hairs when they unfold, nearly fully 

 grown when the flowers open about the 1st of May and then smooth above and 

 glabrous below with the exception of axillary tufts of pale hairs, and at maturity 

 subcoriaceous, dark green and lustrous on the upper surface, paler on the lower 



surface. If -2' long, I'-lf ' wide, with prominent midribs and slender primary veins, 

 turning orange, yellow, and brown in the autumn; their petioles slender, covered 

 while young like the upper side of the base of the midrib with pale deciduous hairs, 

 ^'-|' long; on vigorous shoots often rounded or subcordate at the base, more or less 

 deeply lobed and 2l'-3' long and broad, with stout broadly winged glandular petioles. 

 Flo'wers about f in diameter, on elongated glabrous or sparingly hairy pedicels, in 

 compact few-flowered nearly glabrous corymbs; calyx broadly obconic, glabrous, the 

 lobes gradually narrowed from broad bases, slender, acuminate, entire, or fur- 

 nished with occasional minute glandular teeth, slightly villose on the inner surface; 

 stamens 20; anthers white faintly tinged with pink; styles 3-5. Fruit ripening in 

 October, on elongated slender pedicels, in few-fruited drooping clusters, globose or 

 depressed-globose, red, about \' in diameter, with firm flesh ; calyx enlarged, with 

 spreading or reflexed lobes, villose on the upper side; nutlets 3-5, narrowed and 

 acute at the ends, rounded and broadly grooved on the back, about ^' long. 



A tree, 18-20 high, with a short trunk sometimes 10' in diameter, stout ascend- 

 ing or spreading branches forming a wide head, unarmed branchlets puberulous while 

 young, soon glabrous, and becoming light reddish brown. 



Distribution. Low moist woods and the banks of streams; southeastern Ten- 

 nessee. 



** Stamens usually 10; anthers bright red. 



45. Crataegus micracantha, Sarg. 



Leaves oblong-obovate to oval, acute, acuminate, or rarely rounded at the apex, 

 gradually or abruptly narrowed from above or below the middle to the cuneate en- 

 tire base, coarsely crenulate-serrate and occasionally 3-lobed above, with short broad 

 acute lateral lobes, when they unfold villose on the upper and hoary-tomentose on the 

 lower surface, more than half grown when the flowers open about the middle of May 

 and then membranaceous and slightly villose above, with short scattered pale hairs, 

 and at maturity thin but firm in texture, dark yellow-green, lustrous, and smooth 



