Murrill: Agaricaceae of Tropical North America 73 



Tapinia lignea (Berk. & Curt.) 

 Paxillus ligneus Berk. & Curt. Jour. Linn. Soc. 9: 423. 1867. 



Collected at Orizaba, Mexico, by Botteri, and said by the au- 

 thors to be allied to Paxillus panuoides. The types at Kew much 

 resemble this latter species, and further investigation may show 

 that they do not merit specific distinction. 



2. Mycena (Pers.) Roussel, Fl. Calvados ed. 2. 64. 1806 

 Bolbitius Fries, Epicr. Myc. 253. 1838. 



This genus is characterized among the ocher-spored genera by 

 its deliquescent lamellae. There are few species in it, and these 

 are not generally well known. 



1. Mycena fragilis (Fries) 

 Bolbitius fragilis Fries, Epicr. Myc. 254. 1838. 



Reported from the Antilles by Fries, and from two collections 

 by Duss in Guadeloupe. 



2. Mycena villipes (Fries) 



Bolbitius villipes Fries, Nova Acta Soc. Sci. Upsal. III. i : 28. 

 1851. 



Collected and well figured in color by Oersted at Naranjo, 

 Costa Rica. No specimens of it were found in Europe. 



3. Mycena jalapensis sp. nov. 



Pileus conic to expanded, thin, umbonate, gregarious, 2-4 cm. 

 broad; surface viscid, striate, flavo-melleous, fulvous on the 

 umbo; lamellae free, narrow, close, becoming ferruginous, at 

 length deliquescent; spores ellipsoid or ovoid, smooth, flavo-lu- 

 teous under a microscope, 12-14 X^8/x; stipe cylindric, equal, 

 hollow, glabrous, white or sulfureous, 6-8 cm. long, 2 mm. thick. 



Type collected among chips in woods near Jalapa, Mexico, 

 5,000 ft. elevation, December 12-20, 1909, W. A. & Edna L. 

 Murrill 102 {type), 128. 



4. Mycena mexicana sp. nov. 



Pileus subcespitose, conic to expanded, umbonate, about 2 cm. 

 broad; surface striate, avellaneous, fuliginous on the umbo, sub- 

 glabrous, dry; lamellae adnexed, rather broad, becoming ferru- 



