102 



pean writers of the last century, to settle points in regard to species common 

 to both countries which could at the l>est have only a slight value An exam- 

 ination of the writings of those who have attempted to give as authorities for 

 the species of Agaricacea: only those who accepted the genera now adopted 

 as genera rather than subgenera has shown so many inconsistencies and 

 inaccuracies that we have not been able to follow them. 



For uniformity's sake we have followed the same plan in regard to the purely 

 North American species, but in this case, as all American references known to 

 us are given, with dates, the reader has the means of settling the question of 

 authority for himself. 



As used here in its limited sense we have kept under Agaricus the species 

 placed by mycologists in Psalliota and Pratella, the type of the genus being 

 Agaricus campestris, L. 



Agaricus abietinus, Bull. 



See Lenzltes abletina, (Bull.) Fr. 



Agarieus abortivus, B. & C. 



See Clltopilus abortivus, B. & C. 



Agaricus abruptus, Pk. 



Pk. Mem. N. Y. Mus. 3: 163. d.pl. 59,7. '5-74. Nov. 1900. 

 White, Bull. Torr. Bot. Club. 29: 561. 26 Sept. 1902. 

 Longyear, Rept. Mich. Acad. 4 : 115. 1904. 



Agarlcus silvlcola, Pk. non Vitt. 

 Pk. Rept. N. Y. Mus. 23 : 97. d. 1872. 

 Pk. Rept. N. Y. Mus. 36: 47. d. 1885. 

 Pk. Country Gent. 59 : 518 (31). 12 July 1894. 



Agarlcus arvensis, var. abruptus, Pk. 

 Pk. Rept. N. Y. Mus. 46 : 135 (55). d. Dec. 1893 and Rev. Myc. 16 : 



126. i July 1894. 



Pk. Country Gent. 59 : 518 (30). 12 July 1894. 

 Pk. Bull. N. Y. Mus. 6: 213. July 1899. 



Agarlcus silvicola, var. abruptus, (Pk.) Conant. 

 Conant, Bull. Boston Myc. Club. 19. 5 Feb. 1903. 

 Agaricus abscondens, Pk. 



See Pleurotus lignatilis, (P.) Fr. 



Agaricus abundans, Pk. 



See Collybla abundans, Pk. 



Agaricus aeerieolus, Pk. 

 See PhoHota acericola, Pk. 



Agarieus acervatus, Fr. 

 See Collybla acervata, Fr. 



Agaricus Aehimenes, B. & C. 



B. & C. Am. Jour. Sci. II. 8 : 403. d. Nov. 1849. 



B. & C. Hook. Jour. Bot. 1 : 98 (2). d. 1849. [no. 202.] 



Rav. Charleston Med. Jour. & Rev. 6 : 192. March 1851. 



M. A. Curtis, Bot. N. Car. 90. 1867. 



Sacc. Cub. & Mane. Syll. 5 : 995. d. 28 May 1887. 



Mcllvaine & Macadam, Am. Fung. 340. d. 1900. 

 Psalliota Aehimenes, Lloyd. 



Lloyd, Myc. Notes 29. Nov. 1899. 

 Agarieus Acicula, Scha?ff. 



See Mycena Acicula, (Scha>ff.) Fr. 



Agarieus aeieularis, Muhl. 



NOTE. This is possibly Mycena capillaris, (Schum.) Fr. 

 Muhl. Tr. Am. Phil. Soc. 3: 184. 1793. 

 Agarieus acris, Bolt. 



See Lactarius acris, (Bolt.) Fr. 



