116 Rhodora [APRIL 
+ + Anthers light yellow. 
Crataegus irrasa, n. sp. Leaves ovate, acute, broadly cuneate 
or on leading shoots rounded at the base, laciniate, doubly, or below 
the middle mostly simply, serrate, with incurved glandular teeth; more 
than half grown when the flowers open and then covered with short 
lustrous white hairs and villose below along the slender midribs and 
thin veins arching to the points of the lobes; at maturity thin but 
firm in texture, dark green and lustrous on the upper surface, pale 
yellow-green on the lower surface, 5-6 cm. long, 4-5 cm. wide, or 
on leading shoots sometimes 7 cm. long and 8 cm. wide; petioles 
slender, slightly wing-margined at the apex, grooved, glandular, with 
minute dark red glands, 2-2.5 cm. long; stipules oblong-obovate 
and acuminate, to falcate, acuminate and auriculate on leading 
shoots, villose, glandular-serrate, Flowers 1.3-1.5 cm. in diameter 
on elongated slender densely hairy pedicels, in thin-branched 9-12- 
flowered villose narrow compound corymbs; bracts and bractlets 
linear, small, caducous; calyx-tube narrowly obconic, thickly coated 
with long pale hairs, the lobes gradually narrowed from broad bases, 
short, acute, glandular, with minute bright red glands, villose, reflexed 
after anthesis; stamens 20; anthers small, pale yellow; styles 4 or 
5. Fruit drooping or erect on stout slightly villose pedicels, in broad 
many-fruited clusters, oblong, full and rounded at the ends, dark red, 
lustrous, marked by a few large pale dots, 1.2-1.4 cm. long, about 
1 cm. wide; calyx prominent, with a short tube, a broad deep cavity 
and spreading closely appressed persistent lobes; flesh thin, soft 
and pulpy, orange color tinged with dull red; nutlets 4 or 5, full and 
rounded at the ends, ridged on the back, with a high wide deeply 
grooved ridge, 8 mm. long. 
A shrub 3 or 4 m. in height with numerous stems spreading into 
broad thickets, and slender nearly straight or conspicuously zigzag 
branchlets marked by large oblong pale lenticels, olive green when 
they first appear, dark or light reddish brown during their first season, 
gray or light brown tinged with red the following year and ultimately 
ashy gray, and armed with numerous stout straight bright red-brown 
and shining ultimately ashy gray spines varying from 2.5-9 cm. in 
length. Flowers at the end of May and early in June. Fruit ripens 
at the end of September and occasionally does not fall unti! the fol- 
lowing spring. 
PROVINCE OF QuEBEC: Rocky fields, the borders of woods, and 
banks of the St. Lawrence River, at Sault au Ricollet on the north 
side of Montreal Island, 7. G. Jack, May and September 1902. Com- 
mon. 
Distinguished from the closely related Crataegus flabellata by its 
