Murrill : Dark-Spored Agarics 



261 



Distribution : Known only from the type locality. 

 Known only from two little plants collected by Peck in July and 

 now attached to a sheet at Albany. 



6. Deconica polytrichophila (Peck) comb. nov. 



Agaricus polytrichophilus Peck, Ann. Rep. N. Y. State Mus. 30 : 

 42. 1878. 



Psathyra polytrichophila Sacc. Syll. Fung. 5: 1068. 1887. 

 Deconica bryophila Peck, Ann. Rep. N. Y. State Mus. 46: 106. 



1893. 



Pileus thin, convex or subcampanulate, gregarious, 4-10 mm. 

 broad ; surface glabrous, sometimes with a slight umbo, hygropha- 

 nous, striatulate and brown when moist, dull-ochraceous or buff 

 when dry, somewhat shining; context rather fragile, odorous; 

 lamellae plane and adnate or slightly arcuate and decurrent, broad, 

 subdistant, colored almost like the pileus ; spores subellipsoid, pur- 

 plish-brown, 8 x 5 fx ; stipe slender, equal, subflexuous, slightly 

 whitish-fibrillose, especially toward the base, mealy at the apex, 

 concolorous, containing a whitish pith, 2.5-5 cm - l° n g- 



Type locality: West Albany, New York. 



Habitat: On the ground among Polytrichum or other mosses. 



Distribution : New York and Massachusetts. 



Peck found this species twice in May. The type specimens are 

 at Albany. I got specimens at Lake Placid {156) in July, 1912, 

 growing on a sandy, mossy bank in woods, and described them as 

 follows : 



" Hemispheric, slightly striate-sulcate on the margin, 4-5 mm. broad, smooth, 

 glabrous, isabelline at the center, umbrinous-isabelline otherwise, margin 

 straight ; lamellae plane, distant, adnate with a decurrent tooth, pale-ferruginous 

 or about umbrinous; stipe pruinose at the apex, latericious, glabrous, filiform, 

 tough, 3 cm. long, 0.5 mm. thick." 



Deconica bryophila was described from specimens collected by 

 Peck in May at Delmar and Karner. There are several collections 

 at Albany from New York, and two from Massachusetts, collected 

 by Mackintosh and Davis in April and June respectively. 



7. Deconica pyrispora sp. nov. 



Pileus convex to subexpanded, abruptly umbonate, solitary, 

 about 1 cm. broad ; surface glabrous, dry or slightly hygrophanous, 

 avellaneous, striate to the umbo, which is smooth and isabelline, 



