52 



NEW YORK STATE MUSEUM 



slightly cuived bright chestnut -brown shining ultimately gray spines 

 3-4.5 cm long, much elongated and branched on old stems and 

 large branches. 



"Menands, Golf grounds, Charles H. Peck(£ 3. tgm,type). May 

 and October. 



This species is named in memory of Amos Eaton (1776-1842)- 

 principal and senior professor in the Rensselaer Polytechnic Insti. 

 tute of Troy and author of the Manual of Botany of North America, 



PRUINOSAE 

 Stamens 20 



Anthers rose color 



Crataegus pruinosa K. Koch 



Verhandl. Preuss. Gart. Verein. neue reihe, i, 246 (1874). — Sargent, 

 Silva N. Am. xiii. 61, t. 648; Man. 411, f. 331. 



Lansingburg, Peck and Sargent, August 1905. 



Anthers pale pink 



Crataegus howeana n. sp. Sarg. 



Leaves ovate, acute or acuminate, full and rounded or gradually 

 narrowed and cuneate at the entire base, finely and often doubly 

 serrate above, with straight glandular teeth, and usually slightly 

 divided into three or four pairs of spreading acuminate lateral 

 lobes, nearly half grown when the flowers open about the middle of 

 May and then membranaceous, light yellow green, smooth and 

 sparingly pubescent along the midribs above and pale and glabrous 

 below, at maturity thin, glabrous, blue green, dark and dull 

 on the upper and paler on the lower surface, 3-4 cm long and 2.5-3 

 cm wide, with slender midribs and thin primary veins extending to 

 the points of the lobes; petioles slender, slightly wing-margined 

 at the apex, glandular, with occasional minute, dark, often persistent 

 glands, 1.4-2 cm in length; stipules linear, acuminate, finely 

 glandular serrate, fading red, caducous; leaves on vigorous 

 shoots broadly ovate to nearly orbicular, full and rounded or 

 truncate at the base, more coarsely serrate and more deeply lobed, 

 5-6 cm long and wide, with reddish, often conspicuously glandular 

 petioles 2-3 cm in length. Flowers 1.3-1.8 cm in diameter, on 

 slender glabrous pedicels, in 5 to 10-flowered corymbs, with linear 

 to linear obovate glandular rose-colored bracts and bractlets often 

 persistent till after the flowers open; calyx tube broadly obconic, 

 glabrous, the lobes abruptly narrowed from wide bases", acuminate, 

 short, entire, tipped with dark red glands, reflexed after anthesis; 



