﻿I 



1903] CRATAEGUS IN NORTHEASTERN ILLINOIS 379 



PRUINOSAE. 



Stamens 20. 



Anthers rose color. 



Crataegus pkuinosa K, Koch; Sargent, Silva N. Am. 13:68. 



//. 648. 



Barrington, May and September 1901, Highland Park, May and October 

 1 902, Bremen, October 1901, May 1902, E. J. Hill ; Lake Forest, September 

 I901, W. C Egan ; Milton, DuPage county, May and September 1902, 



B, T. Gault, 



A n thers pa le j 'ello w , 



Crataegus conjuncta Sargent, Rhodora 5: 57. 1903. 



r 



Mokena, May and October 1897, September 1898, May, September and 

 October 1900, Highland Park, May and October 1902, Deerfield, May and 

 September 1902. Bremen, May 1902, £. /, Hill; Highland Park, W. C.Egan, 

 May and September I901. 



+ 



Stamens 10, 



Anthers rose color. 



Crataegus dissona Sargent, Rhodora 5: 60. 1903. 



Hill 



ber 9, 1895, May and September 1899, May and October 1901, C 5. Sargent, 

 September 1899; gravelly b^nks of Salt Creek, La Grange, E. J, Hill. June 

 and September 1902. 



punctatae. 



Crataegus punctata Jacquin. 



Common* 



MOLLES. 



Stamens 20. 



Anthers pale yellow, 



Crataegus mollis Scheele, Sargent, Silva N. Am. 13'- 83 



pL d^g. 



Common. 



Crataegus sera Sargent, Bot. Gaz. 33: 115. 1902 ; Silva N 

 Am. 13: 87. pL 661. 



Bottoms of the Desplaines and Calumet rivers, and Barrington. 



Anthers rose color, 



Crataegus corusca Sarorent, Bot. Gaz. 33: ii7- ^QO^ ? "^^^^'^ 

 N, Am. 13: 99, pi, 667. 



G 



Shores of Lake Zurich. Rare. 



