II4 Rhodora [APRIL 
very prominent thick primary veins extending obliquely to the points 
of the lobes; petioles slender, more or less wing-margined above 
by the decurrent bases of the leaf-blades, slightly grooved, 2.5-3 cm. 
in length; stipules linear, acuminate, glandular-serrate, caducous. 
Flowers 1.6 cm. in diameter on slender pedicels, in broad many- 
flowered thin-branched compound corymbs; bracts and bractlets 
linear, acuminate, entire or finely glandular-serrate, caducous ; calyx- 
tube broadly obconic, the lobes rather abruptly narrowed from the 
base, slender, elongated, acuminate, tipped with small dark red 
glands, grandular-serrate or rarely entire; stamens 10; anthers large, ° 
deep-rose color; styles 3-5. Fruit erect on short or long rigid pedi- 
cels, subglobose to oblong or obovate, full and rounded at the ends, 
orange-red, marked by occasional small pale lenticels, 1—1.4 Cm. long, 
8-10 mm. wide; calyx sessile, with a broad shallow cavity and spread- 
ing and closely appressed mostly entire lobes; flesh thin, yellow, dry 
and mealy ; nutlets usually 3, full and rounded at the ends, ridged on 
the rounded back, with a low broad ridge, about 8 mm. long and 
almost as broad. 
A wide round-topped shrub 3 or 4 m. in height with many intri- 
cately branched stems, and very stout much contorted branchlets 
dark green, lustrous, and marked by numerous large pale lenticels 
when they first appear, dull red-brown during their first season and 
dark gray-brown or brown tinged with red the following year, and 
apparently unarmed. Flowers from the 2oth to the end of May. 
Fruit ripens from the rst to the middle of September. 
MASSACHUSETTS: Upland rocky pastures, West Boylston, 7. G. 
Jack, Mrs. John E. Thayer, C. S. Sargent, May and September 1900, 
1902. 
This species, of which I have seen but two individuals, resembles 
in the shape of the leaves Cratacgus scabrida, Sargent, of western 
New England and the St. Lawrence valley, with which it should be 
associated. The leaves, however, are more sharply and deeply lobed 
and their midribs and veins are much stouter and more prominent, 
and the fruit is erect, much smaller and more often subglobose. The 
specific name of this species testifies to my appreciation of the help 
which I have received during several years from Mr. and Mrs. John 
E. Thayer of Lancaster in my studies of Crataegus in central Massa- 
chusetts. 
§ FLABELLATAE. 
* Stamens 20. 
+ Anthers rose color. 
CRATAEGUS FLABELLATA Spach. Sargent, RHODORA, iii. 75 (1901). 
