122 NEW YORK STATE MUSEUM 
Crataegus spinea n. sp. 
Glabrous with the exception of the hairs on the inner surface of 
the calyx-lobes. Leaves rhombic, acute at the ends, finely serrate, 
often only above the middle, with straight glandular teeth, and 
slightly divided into three or four pairs of broad acuminate lobes; 
nearly fully grown when the flowers open at the end of May and 
then light yellow-green above and pale blue-green below, and at 
maturity thick, dark green and lustrous on the upper surface, pale 
on the lower surface, 4 to 5 cm long and 2 to 3 cm wide, with 
prominent midribs and veins deeply impressed on the upper side; 
petioles slender, wing-margined nearly to the base, 7 to 10 mm in 
length. Flowers 1.3 to 1.8 cm in diameter, on long slender pedicels, 
in lax 15-22-flowered corymbs, the elongated lower peduncles 
from the axils of upper leaves; calyx-tube narrowly obconic, the 
lobes gradually narrowed from the base, wide, acuminate, laciniately 
glandular-serrate, reflexed after anthesis; stamens twenty; anthers 
small, rose color; styles two to four, mostly two or three. Fruit 
on erect pedicels, in broad clusters, subglobose to short-oblong, dark 
red, lustrous, marked by dark spots, 6 to 7 mm in diameter; calyx 
prominent with a short tube, a wide shallow cavity pointed in the 
bottom, and reflexed persistent lobes dark red on the upper side 
below the middle; flesh yellow, dry and mealy; nutlets usually two 
or three, rounded at the ends, ridged on the back with a narrow 
rounded ridge, penetrated on the inner faces by long deep narrow 
cavities, 4 to 4.5 mm long and 3 to 3.5 mm wide, the narrow hypo- 
style extending to the middle of the nutlet. 
A round-headed shrub 3 to 4 m high, with stout stems spreading 
into large clumps and covered at the base with dark gray-brown 
checkered bark, ascending branches, and stout nearly straight branch- 
lets orange-green and marked by large pale lenticels when they first 
appear, becoming light chestnut-brown and lustrous at the end of 
their first season and dull red-brown the following year, and armed 
with numerous slender straight dark chestnut-brown shining spines 
5 to 7 cm long. 
Low moist hillsides near Campbell; G. D. Cornell (no. 124, type), 
October 5, 1907, May 26, 1908. 
Crataegus halliana Sargent 
N. Y. State Mus.« Bul. 105. 73 (1906). 
Near Albany. 
