REPORT OF THE STATE BOTANIST, I919 59 



45 Inocybe infida (Peck) Massee. This has been a much mis- 

 understood species. When dried the pileus becomes pale brown, the 

 stem dark fuscous; this characteristic, along with the angular-nodu- 

 lose spores, separates it from I. geophylla. I suspect, from 

 this, that too much emphasis has been placed on its color when fresh, 

 when it is said to inr.tate I . geophylla almost perfectly. Massee 

 referred I . u m b r a t i c a to it as a synonym, but the stem of the 

 European species has a subturbinate, subemarginate bulblet, which 

 is not present in our plant, and the stem of I. umbratica is 

 solid. The gills of I . c o m m i x t a Bres., which is synonymous 

 with I. umbratica, are described as " very crowded," while in 

 I . infida, although narrow, they are merely close. Specimens 

 from Bresadola, marked I . c o m m i x t a , had retained the whitish 

 color on drying. 



47 Inocybe castanea Peck. The size of the plants and the 

 spores are similar to I. umbrina Bres., but the pileus is not 

 markedly rimose as in that species, has reddish tints and the cystidia 

 are definitely thick-walled. I have not collected it, and other differ- 

 ences doubtless occur. 



48 Inocybe albodisca Peck. This is a clear-cut species. 



50 Inocybe intricata Peck. This deserves its name, because of 

 the confusion in the type collection, although Peck named it for a 

 different reason. It was first collected in Massachuset^^s. The type 

 collection contains two species : one with thin-walled cystidia which 

 is probably I . h i u 1 c a Bres.. the other the genuine type with thick- 

 walled cystidia and large, broadly elliptical spores, not angular, 

 densely and coarsely nodulose, 10-12. 5 x 7-8 (9) micr. It is a well- 

 marked species. It differs from I. asterospora, according 

 to Peck, " by its smaller size, pale shining pileus, stuffed or hollow 

 stem and larger spores." That Peck was dealing with selected plants, 

 of the type only, is shown by the agreement of the spores and cystidia 

 with his description. 



53 Inocybe nigrodisca Peck. The small spores, subsphaeroid to 

 subrectangular in outline, irregularly angular-nodulose, the nodules 

 indistinct, are similar to those of I. umbrina, I. umboninota 

 and I. castanea. The surface of the pileus is very minutely 

 Innuginose as in I . m i n i m a and of the same small size, but thai 

 species has smooth spores. The cystidia are slender, lanceolate and 

 thick-walled. 



55 Inocybe stellatospora (Peck) Massee. This rather larg^ 

 plant with a pileus 2-5 cm broad, is unique among the Squarrosae, 



