184 Rhodora [Jurv 
ally narrowed to the entire base, coarsely and doubly serrate above, 
with straight glandular teeth, and slightly divided above the middle 
into many narrow acuminate lobes; nearly fully grown when the 
flowers open and then membranaceous, roughened above by short 
rigid pale hairs and slightly villose below along the slender yellow 
midribs and primary veins; at maturity thin but firm in texture, dull 
dark green and scabrate on the upper surface, pale yellow-green and. 
still slightly villose on the lower surface, 6—7 cm. long, about 5 cm. 
wide; petioles stout, more or less wing-margined above, slightly 
villose, about 1.5 cm. in length. Flowers 1.2 cm. in diameter on 
long slender villose pedicels, in compact thin-branched many-flowered 
hairy compound corymbs; bracts and bractlets linear, acuminate, 
glandular, mostly caducous before the flowers open; calyx-tube 
narrowly obconic, villose at the base, glabrous above, the lobes 
broad, acuminate, very coarsely glandular-serrate often only above 
the middle, villose on the inner surface, reflexed after anthesis; 
stamens 10; anthers purple; styles 2 or 3. Fruit on erect rigid 
slightly villose pedicels, in few-fruited clusters, subglobose, often 
hairy at the base, bright clear red, lustrous, 8 or 9 mm. in diameter; 
calyx enlarged, with a wide shallow cavity and broad coarsely serrate 
spreading and closely appressed lobes densely coated above with long 
white hairs; flesh thin, yellow, dry and mealy; nutlets 3, 7 mm. 
long, full and rounded at the ends, thick, slightly ridged on the back, 
with a broad low ridge, the ventral cavities short, deep and narrow. 
A shrub 1—2 m. in height with slender nearly straight branchlets 
bright orange-colored when they first appear, becoming bright chest- 
nut-brown and lustrous during their first season and light red-brown 
the following year, and armed with many stout straight chestnut- 
brown shining spines 2.5—3 cm. in diameter. Flowers during the first 
week of June. Fruit brightly colored and full grown by the middle of 
August, ripening a month later. 
CONNECTICUT: rare; sandy terrace near Trading Cove, Norwich, 
C. B. Graves, August 23, 1900, June 4, 1901; Southington, C. Z7. 
Bissell, June and September r9or. 
Crataegus Robinsoni, n. sp. Leaves obovate, acute or acum- 
inate, gradually narrowed from above the middle and cuneate at the 
entire base, finely and often doubly serrate above, with straight or 
incurved teeth tipped with bright red glands, and slightly divided into 
3 or 4 pairs of short acute lateral lobes; when they unfold conspicu- 
ously plicate, light yellow-green and covered above with short shining 
white hairs and glabrous below, about one-third grown when the 
flowers open, and at maturity thin and firm in texture, dark yellow- 
green and lustrous on the upper surface, paler on the lower surface, 
about 4.5 cm. long, 3-4 cm. wide, with very slender midribs and thin 
primary veins extending obliquely to the points of the lobes ; petioles 
