ROSACES 



417 



red, the lobes linear-lanceolate, entire or finely glandular-serrate; stamens usually 5, 

 occasionally 6-10; anthers large, dark red-purple; styles 3, surrounded at the base 

 by a thin ring of hoary tomentum. Fruit ripening about the middle of September 

 and soon falling, on stout pedicels, in drooping narrow clusters, short-oblong, full 

 and rounded at the ends, dark crimson, lustrous, marked by minute pale dots, usually 

 about f long and ^' thick; calyx enlarged and persistent, the lobes elongated, 

 strongly incurved, often deciduous before the fruit ripens ; flesh thick, dry and 

 nealy; nutlets 3, thick, narrowed and acute at the ends, prominently ridged on the 

 back, with a high broad ridge, ' long. 



A tree, rarely more than 15 high, with a straight trunk 5'-6' in diameter, cov- 

 ered with thin bark separating into papery lustrous pale scales, stout branches 

 forming a broad open head irregular in outline, and slender glabrous branchlets 

 bright chestnut-brown during their first season, becoming ashy gray the following 

 year, and armed with many thick straight or curved bright chestnut-brown or red- 

 brown spines I'-l^' long. 



Distribution. Low hills and limestone ridges; southern and southwestern Ver- 

 mont. 



51. Crataegus silvicola, Beadl. 



Leaves ovate, acute or acuminate at the apex, full and rounded at the entire base, 

 sharply and often doubly serrate above, with gland-tipped teeth, and slightly and 

 irregularly divided into short acute lateral lobes, when they unfold dark red and 



coated with short soft pale hairs most abundant on the upper surface, about half grown 

 when the flowers open at the end of April and then nearly glabrous, and at maturity 

 thin, dark yellow-green and smooth or scabrous above, pale and glabrous below, or 

 occasionally villose along the under side of the slender midribs and 3 or 4 pairs of 

 thin primary veins extending to the points of the lobes, about 2' long and l^'-lf 

 wide; their petioles slender, glandular, about 1' long; on vigorous shoots often del- 

 toid, and truncate or cordate at the base, more coarsely serrate and more deeply 

 lobed, and frequently 2^' long and broad. Flowers about f ' in diameter, on slender 

 pedicels, in compact few-flowered thin-branched compound glabrous corymbs, with 

 linear glandular bright red caducous bracts and bractlets ; caylx-tube narrowly ob- 

 conic and glabrous, the lobes gradually narrowed, acuminate, glabrous, entire or 



