REPORT OF THE STATE BOTANIST I()I2 IIQ 



pedicles, in board 5-15-fruited clusters, subglobose, dark red, 

 marked by large pale dots, 7 to 8 mm in diameter ; calyx prominent, 

 with a wide shallow cavity broad in the bottom, and spreading and 

 reflexed enlarged persistent lobes ; flesh thin, firm and dry ; nutlets 

 two or three, pointed at the apex, rounded at the base, ridged on 

 the back with a broad grooved ridge, penetrated on the inner faces 

 by deep narrow cavities, 6 to 7 mm long and 3 to 5 mm Wide. 



A shrub 4 to 5 m high, with erect gray stems and branches, and 

 slender, glabrous branchlets tinged with red and marked by pale 

 lenticels when they first appear, becoming bright chestnut-brown 

 and lustrous, and armed with numerous slender straight or slightly 

 curved dark chestnut-brown shining spines 3.5 to 6 cm long. 



In thickets in heavy clay soil, near Belfast, Allegany county, 

 Baxter and Dewing (no. 214, type), May 30, 1903, September 14, 

 1904, September 19, 1905. 



Crataegus ambrosia Sargent 

 N. Y. State Mus. Bui. 105. 69 (1906). 

 Albany. 



Crataegus rhombifolia Sargent 

 Rhodora V. 183 (1903) ; N. Y. State Mus. Bui. 105. 71 (1906). 

 Crown Point, Whitehall, near Albany ; also in western and south- 

 ern New England. 



Crataegus deweyana Sargent 



Proc. Rochester Acad. Sci. IV. 133 (1903). 



Ithaca, Rochester, Rush, Portage, Castile and Silver Springs. 



Crataegus cupulifera Sargent 

 Proc. Rochester Acad. Sci. IV. 129 (1903). 

 Crataegus simulans Sargent. N. Y. State Mus. Bui. 122. 125 (1908). 

 Chapinville, Rochester, Hemlock lake and Coopers Plains. 



Crataegus balkwillii Sargent 

 Ontario Nat. Sci. Bui. 4. 80 (1908). 

 Chapinville ; also in southern Ontario. 



Crataegus microsperma Sargent 

 Ontario Nat. Sci. Bui. 4. 82 (1908) 

 Little Falls, Coopers Plains ; also in southern Ontario. 



