182 Rhodora [OCTOBER 
der drooping red pedicels, in few-fruited clusters, subglobose to 
globose, scarlet, lustrous, marked by numerous small pale dots, 1.2— 
1.4 cm. in diameter; calyx little enlarged, with a broad shallow cav- 
ity, and reflexed and closely appressed slightly serrate lobes dark red 
below the middle and puberulous on the upper side, their tips often 
deciduous from the ripe fruit; flesh thick, dry and mealy ; nutlets 3 or 
4, rounded at the base, gradually narrowed and rounded at the apex, 
ridged on the back, with a broad high deeply grooved ridge, pene- 
trated on the inner faces by long and narrow shallow cavities, about 
7 mm. long and 4-5 mm. wide. 
A shrub 1-2 m. high, with stout zigzag branchlets marked by 
numerous oblong pale lenticels, orange-yellow and glabrous when 
they first appear, becoming light chestnut-brown and lustrous in their 
first winter and dull gray-brown the following year, and armed with 
numerous slender slightly curved purplish shining spines 5-6 cm. 
long. 
Somerset, Bristol County, Massachusetts, /. E. Jack (no. 4 type), 
May and September 1904. 
This species, and C. spatiosa, resemble the Coccineae in the charac- 
ter of the leaves and in the general appearance of the fruit, but the 
cavities on the ventral surfaces of the nutlets, although less devel- 
oped than in most species of Tomentosae, indicate that they should 
be referred to that group. It is named in memory of George Barrel 
Emerson (1797-1881), the author of the classical Report on the Trees 
and Shrubs of Massachusetts, whose love of trees and their cultiva- 
tion led to the establishment of the Arnold Arboretum. 
Mature leaves subcoriaceous to coriaceous. 
Anthers rose-color. 
Crataegus fulgens, n. sp. Leaves broadly ovate to suborbicu- 
lar, rounded or acute at the apex, abruptly narrowed and concave- 
cuneate at the entire base, coarsely doubly serrate above, with 
straight glandular teeth and slightly divided above the middle into 4 
or s pairs of small acute lobes, scabrate above while young, with 
short white hairs, and pale and glabrous below with the exception of 
occasional axillary persistent hairs, and at maturity coriaceous, dark 
yellow-green, smooth and lustrous on the upper and pale on the 
lower surface, 5-7 cm. long and 4-7 cm. wide, with midribs deeply 
impressed on the upper side of the leaves and rose-colored on the 
lower toward the base, and prominent yellow primary veins extending 
obliquely to the points of the lobes; petioles stout, wing-margined at 
the apex, deeply grooved, dark rose color late in the season, 2-2.5 
