74- ^lEW YORK STATE MUSEUM 



A shrub 2-5 tn high, with numerous widespreading or ascending 

 stems covered with dark brown scaly bark, and slender nearly 

 straight branchlets marked by small oblong pale lenticels, light 

 orange-green and glabrous when they first appear, light chestnut- 

 brown and very lustrous at the end of their first season, darker the 

 following year, and armed with few slender more or less curved 

 bright chestnut-brown shining spines 2.5-5 cm long and often 

 pointing toward the base of the branch. 



North Albany, Charles H. Peck (# 3 na, type), June and October 

 1904, June 1905. Menands, Golf ground (# 3 gg, with leaves 

 sometimes narrow-rhomboidal) , May, June and September 1905. 



This species is named in memory of James Hall (1811-1898), the 

 distinguished geologist and paleontologist, long a professor in the 

 Rensselaer Polytechnic Institute of Troy and one of the authors 

 of the Catalogue of Plants in the vicinity of Troy, published in 1837. 



Stamens 10-20 



Anthers pink 



Crataegus conspicua n. sp. Sarg. 



Leaves oblong-obovate, rounded, acute or acuminate at the 

 apex, gradually narrowed to the concave cuneate entire base, 

 coarsely doubly serrate above, with straight glandular teeth, and 

 slightly divided toward the apex into three or four pairs of short 

 acute lobes, nearly one third grown when the flowers open about 

 the 20th of May and then membranaceous, dark yellow green and 

 glabrous above with the exception of a few short pale hairs along 

 the midribs and veins, and covered below with pale tomentum 

 most developed on the midribs and veins, at maturity coriaceous, 

 dark green and glabrous on the upper and pale and tomentose on 

 the lower surface, 7-9 cm long and 5-7 cm wide, with stout midribs 

 deeply impressed on the upper side of the leaf and rose-colored 

 below toward the base, and slender primary veins extending ob- 

 liquely to the points of the lobes; petioles stout, wing-margined to 

 below the middle, deeply grooved, slightly villose along the upper 

 side while young, becoming glabrous and often rose-colored or 

 purple below the middle, 2-3 cm in length; leaves on vigorous 

 shoots oval, to obovate, more coarsely serrate, 7-8 cm long and 5-6 

 cm wide. Flowers 1.2 -1.3 cm in diameter, on slender densely hoary 

 tomentose pedicels, in broad many-flowered tomentose corymbs. 



