1903] Sargent,— Recently Recognized Species of Crataegus 149 
calyx somewhat enlarged, closely appressed, with a broad shallow 
cavity and slender lobes gradually narrowed from broad bases, acumi- 
nate, mostly entire, bright red on the upper side near the base; flesh 
thin, greenish yellow; nutlets 3, acute at the ends, prominently ridged 
on the narrow back, with a high ridge, about 6 mm. long. 
A shrub 3 or 4 m. in height with slender stems covered with pale 
gray bark, ascending branches forming an open head, and stout very 
zigzag branchlets marked by large pale lenticels, yellow-green more 
or less tinged with red when they first appear, bright red-brown and 
lustrous during their first season, gray-brown the following year, and 
armed with many stout mostly curved bright red-brown shining ulti- 
mately gray spines 1.8-3.5 cm. in length. Flowers during the last 
week of May. Fruit ripens early in October, often remaining on the 
branches after the leaves have fallen. 
MASSACHUSETTS: Meadows near the Stockbridge Bowl, Brainerd 
and Sargent, May 30, 1902, C. S. Sargent, September 9, and October 
3, 1902; roadside, North Adams to Williamstown, Brainerd and 
Sargent, May 29, 1902, C. S. Sargent, September 1902. VERMONT: 
New Haven and North Ashburnham, October 1899, New Haven, 
August 1900, Salisbury Plain and Middlebury, September 1900, along 
the New Haven River, August and October 1900, Æ. Brainerd; 
Middlebury, C. S. Sargent, September 1900; Putney, W. W. 
Eggleston, October 1902; Bellows Falls, 7. G. Jack, September 19or, 
(with earlier ripening fruit). l 
Crataegus dissimilis, n. sp. Leaves acuminate, full and rounded 
or broadly cuneate at the entire more or less oblique base, finely often 
doubly glandular-serrate above, and slightly divided into 3 or 4 pairs 
of small acute or acuminate lateral lobes ; more than half grown, dark 
green and scabrate above and pale below when the flowers open; at 
maturity thin but firm in texture, glabrous, dark yellow-green and 
smooth on the upper surface, light yellow-green on the lower surface, 
4-5 cm. long, 3-5 cm. wide, with thin yellow midribs and slender 
primary veins extending very obliquely to the points of the lobes ; 
petioles slender, nearly terete, 1.5-3 cm. in length; on vigorous 
shoots leaves sometimes 6—7 cm. long and wide, usually slightly cor- 
date at the base and more deeply lobed than the leaves of lateral 
branchlets, with stout petioles 1—1.2 cm. in length. Flowers 1.1-1.2 
cm. in diameter when fully expanded, on slender pedicels, in loose 
thin-branched glabrous compound corymbs, the axillary peduncles 
elongated, sometimes 3-5 flowered, and rising above the terminal 
central part of the inflorescence ; calyx tube narrowly obconic, tinged 
with red, the lobes slender, acuminate and long-pointed, entire or 
finely glandular-serrate below the middle, tipped with bright red 
