CRATAEGUS IN ROCHESTER, NEW YORK. I3I 



midribs on both surfaces and often in the axils of the primary veins 

 below ; at maturity thin but firm in texture, glabrous, dark dull green 

 and slightly roughened on the upper surface, pale on the lower surface, 

 4-6 cm. long, 3.5-5 cm. wide, with slender yellow midribs and 4 or 5 

 pairs of very thin primary veins extending obliquely to the points of 

 the lobes ; petioles slender, wing-margined at the apex, grooved, 

 slightly villose, occasionally glandular on the upper side early in the 

 season, soon glabrous, usually tinged with red in the autumn, 1.2-2 

 cm. in length ; on vigorous leading shoots leaves usually ovate, 

 abruptly long-pointed, rounded or cuneate at the base and often 7-8 

 cm. long and broad, their petioles stout, broadly winged, with folia- 

 ceous lunate acuminate glandular-serrate persistent stipules. Flowers 

 1. 6- 1. 8 cm. in diameter, on long slender pedicels, in compact few- 

 flowered thin-branched glabrous corymbs ; calyx nearly obconic, 

 glabrous, the lobes wide, elongated, acuminate coarsely glandular- 

 serrate, glabrous on the outer, villose on the inner surface, reflexed 

 after anthesis ; stamens 20 ; anthers small, pale yellow ; styles 4 or 5. 

 Fruit on slender reddish pedicels, in few-fruited drooping clusters, 

 subglobose to short-oblong, dark crimson, lustrous, marked by 

 numerous large pale lenticels, I -1.2 cm. in diameter ; calyx prominent, 

 with a short tube, a broad deep cavity and coarsely serrate nearly 

 glabrous reflexed and closely appressed lobes ; flesh thin, yellow, dry 

 and mealy ; nutlets 4 or 5, thin, full and rounded at the apex, grad- 

 ually narrowed to the base, ridged on the back, with a broad grooved 

 or with a narrow rounded ridge, or rounded and only slightly grooved 

 on the back, 67 mm. long, 



A tree 5-6 m. in height, with a tall trunk 1.5 dm. in diameter, 

 covered with pale olive-green bark, slender somewhat pendulous 

 branches and thin nearly straight branchlets, light red-brown marked 

 by many pale lenticels when they first appear, light red-brown and 

 very lustrous at the end of their first season, becoming dark gray- 

 brown the following year, and armed with few straight slender light 

 red-brown and shining usually dark gray spines, 2.5-3 cm. in length. 

 Flowers at the end of May. Fruit ripens early in October and falls 

 before the middle of November. 



Rochester ; Genesee Valley Park, John Diuibar ■a.nA C. C. Laney, 

 October 12, 1901, June 3, 1902, October 6, 1902 ; C. S. Sargoii, 

 September 30, 1902. 



This species is named for Miss Mary Elizabeth Macauley, one of 

 the authors of Plants of Monroe County, New York, and Adjacent 

 Territory . 



