Murrill: Dark-Spored Agarics 



71 



Doubtful and Excluded Species 



Drosophila atrofolia (Peck) Murrill, Mycologia 4: 303. 1912. 

 Specimens at Albany, so named by Peck, collected by Lloyd in 

 Ohio, are specifically distinct from the types collected by Mc- 

 Clatchie in California. 



Hypholoma Candolleanum (Fries) Quel. Champ. Jura Vosg. 

 115. 1872. {Agaricus Candolleanus Fries, Obs. Myc. 2: 182. 

 1 818.) Given the long name, Agaricus violaceolamellatus, by De- 

 Candolle in Flora France 2: 153, which Fries changed as above. 

 Some claim that it is not distinct from D. appendiculata, which 

 often shows violet or purplish colors in its young gills at one stage 

 and has similar spores. Specimens from Bresadola show smooth, 

 broadly ellipsoid or ovoid spores measuring 7-9 x 4-5 /x. At Kew 

 the two species seem exactly the same. Peck says his H. made- 

 odiscum differs in having white gills at early stages. He has a 

 sheet with plants from North Greenbush, New York, marked " H. 

 Candolleanum. Spores 8-10 x 4-5 \x. H. velutinum leiocephalum 

 B. & Br." Also a packet from Mt. McGregor. The characters 

 usually ascribed to H. Candolleanum as distinct from H. appen- 

 diculatum are the violet color of the young gills, the darker color 

 of the pileus, and the striations at the apex of the stipe. 



Hypholoma comatum Atk. Proc. Am. Phil. Soc. 57: 355. 1918. 

 Described from specimens collected at Ithaca, New York, in 1917- 

 Type not seen. 



Hypholoma confertissimum Atk. Proc. Am. Phil. Soc. 57 : 355. 

 1918. Described from specimens collected near Oakland, Mary- 

 land, in 191 7. Type not seen. 



Hypholoma coronatum (Fries) Sacc. Syll. Fung. 5 : 1038. 1887. 

 {Agaricus coronatus Fries, Hymen. Eur. 295. 1874.) Reported 

 several times from North America. Authentic specimens show it 

 to be very near D. appendiculata (if not that species), with denti- 

 form-appendiculate veil making the margin look like the edge of a 

 crown, as shown in Fries, Ic. Hymen, pi. 134, f. J. Morgan says 

 H. subaquilum is H. coronatum, but that can not be true, because 

 the spores of the latter measure 7-9 x 3.5-5 /x and are ellipsoid 

 with rounded ends. At Albany, several specimens called H. coro- 

 natum by Peck are spread on a sheet marked " Menands, N. Y., 



