g6 NEW YORK STATE MUSEUM 



ing year, and armed with slender slightly curved purple shining 

 spines 2.5-4 cm long. 



Coopers Plains, G. D. Cornell {}^6S, type), September 22, 1906, 

 June 8, 1907. 



Anthers pale yellow 



Crataegus inusitula Sargent 



Rich hillsides, Coopers Plains, G. D. Cornell (;^57), May 26 and 

 October 14, 1906, May and September 1907; also at Chapinville, 

 Ontario co. 



The Coopers Plains plant differs from the type of Crataegus 

 inusitula in the fewer hairs on the pedicels, which are some- 

 times nearly glabrous. 



TENUIFOLIAE 



Stamens 10 or less; anthers rose color, red or pink 



Crataegus ignea n. sp. 



Glabrous with the exception of the hairs on the upper surface 

 of the young leaves and calyx-lobes. Leaves oblong-ovate, long- 

 pointed and acuminate at the apex, rounded or abruptly concave- 

 cuneate at the entire base, finely often doubly serrate above, with 

 straight glandular teeth, and slightly divided into 4 or 5 pairs of 

 small acuminate spreading lateral lobes ; deeply tinged with red and 

 covered on the upper surface with soft white hairs when they un- 

 fold, more than half grown when the flowers open at the end of 

 May or early in June, and then thin, yellow-green, still slightly 

 hairy above and pale below, and at maturity thin but firm in texture, 

 dull yellow-green and slightly roughened on the upper surface, pale 

 yellow-green on the lower surface, 4-5 cm long and 2.5-4 cm wide, 

 with thin yellow midribs and primary veins ; petioles slender, 

 slightly wing-margined at the apex, sparingly villose while young, 

 ioon becoming glabrous, occasionally glandular, often dark rose 

 color in the autumn, 1.5-2.5 cm in length; stipules linear to lanceo- 

 late, glandular, with bright red glands, green, caducous ; leaves on 

 vigorous shoots thick, ovate, acute, rounded, truncate or subcordate 

 at the broad base, more coarsely serrate, more deeply lobed, and often 

 6-7 cm long and 5-6 cm wide, with thick conspicuously glandular 

 petioles. Flowers 1.5-1.7 cm in diameter, on long slender pedicels, 

 in compact mostly 6-12-flowered corymbs, the elongated lower 

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

 obconic, the lobes slender, red and acuminate at the apex, very 



