REPORT OF THE STATE BOTANIST I907 IO3 



Crataegus matura Sargent 



Rhodora III. 24 (1901); V. 144 (1903). 



Hillsides, Coopers Plains, G. D. Cornell (#21), September 21, 

 1905, May 21, 1906, (#59) May 24 and September 21, 1906; also 

 Genesee valley, New York to western New England. 



Crataegus streeterae Sargent 

 Rochester Acad. Sci. Proc. IV. 119 (1903). 



Hillsides, Coopers Plains, G. D. Cornell (#5), September 21, 



1905, May 24, 1906, (# 82) September 16, 1906, May 30, 1907; 

 also at Rochester, Buffalo, Niagara Falls, New York, and in south- 

 ern Michigan. 



Crataegus ornata Sargent 

 Rochester Acad. Sci. Proc. IV. 120 (1903). 



Hillsides, Coopers Plains, G. D. Cornell (^95), September 21, 



1906, June 2, 1907; also valley of the Genesee river. New York 

 and southern Ontario. 



F1.ABEL.L.ATAE 



Crataegus steubenensis n. sp. 



Leaves ovate, long-pointed and acuminate, rounded at the base, 

 finely often doubly serrate, with straight or reflexed glandular teeth, 

 and slightly divided above the middle into 5 or 6 pairs of small 

 spreading acuminate lobes ; slightly tinged with red when they un- 

 fold, nearly half grown when the flowers open about the 20th of 

 May and then thin, yellow-green and strigose above and paler and 

 glabrous below, and at maturity thin but firm in texture, yellow- 

 green and scabrate above, pale below, 5-6 cm long and 4.5-5 cm 

 wide, with thin prominent midribs often rose color late in the season, 

 and conspicuous primary veins extending obliquely to the points of 

 the lobes ; petioles slender, slightly wing'-margined at the apex, 

 villose while young, becoming glabrous, occasionally sparingly 

 glandular, often rose color in the autumn, 2.5-3 ^^ '^^ length. 

 Flowers 2-2.3 cm in diameter, on long slender sparingly villose 

 pedicels, in lax mostly 7-14-flowered corymbs, the elongated lower 

 peduncles from the axils of upper leaves ; calyx-tube narrowly ob- 

 conic, the lobes long, slender, acuminate, glandular serrate, glabrous 

 on the outer, slightly villose on the inner surface, reflexed after 

 anthesis ; stamens 20 ; anthers pale rose color ; styles 3-5, usually 

 5. Fruit ripening the end of September, on long slender glabrous 



