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 1 5-22-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. Bui. 105. 73 (1906). 

 Near Albany. 



