REPORT OF THE STATE BOTANIST, I919 53 



the larger spores, in which case mycological practice undoubtedly 

 vv ould represent them thus : 7-1 1 x 5-7 micr. ; and such a kind of 

 variability must be reckoned with as a morphological character, giv- 

 ing us, in addition to the elliptical nonreniform spore, also a " vari- 

 able '' spore as compared to many other species, especially in this 

 connection 1. caesariata. 



Both I. subtomentosa and I. subdecurrens lack a 

 well-developed fibrillose sheath on the stem (subperonate), as do the 

 other species mentioned, and hence the tomentose covering on the 

 caps is also less highly developed, so that they rarely approach the 

 Lacerae orSquarrosae, at least in material at present avail- 

 able. I. subdecurrens must remain a somewhat doubtful 

 speqies ; the cap of i. subtomentosa is described as *' brownish- 

 tawny " and dries deep ochraceous, while 1. subdecurrens is 

 said to have a " yellow-drab " pileus, and dries alutaceous. Whether 

 the gills of I. subdecurrens are consistently decurrent and 

 whether this character holds, needs to be established more definitely. 

 I he cap ,is described more pilose than in I. subtomentosa 

 and for the present the species must be recognized. 



5 Inocybe fastigiella Atkinson. This is a common species in the 

 United States and is doubtless the plant referred to I . r i m o s a 

 Fr. in many American lists. Even a cursory examination of Euro- 

 pean notices should convince one that the most widely accepted con- 

 ception of the Friesian species can not be that of ours. Patouillard, 

 Bresadola and Massee consider the Friesian plant to possess cystidia, 

 and European specimens bear this out. Ricken in " Blatterpilze " 

 evidently has a plant identical or close to ours, and in my reference 

 to this species in "Agaricaceae of Michigan " it was referred to 

 Ricken's I . r i m o s a . This is a strong indication that I . fas- 

 tigiella occurs also in Europe. I have no evidence that it has 

 been named before. The specimens described by Doctor Peck as 

 possessing cystidia can not be the species as it is known in Europe, 

 but are probably referable to I. destricta var. minor and 

 elsewhere. 



6 Inocybe rimosoides Peck. The pale yellow pileus distinguishes 

 this from I. fastigiella; and the lack of a subemarginate bulb, 

 from I . c o o k e i Bres. 



8 Inocybe squamosodisca Peck. This has many similarities to 

 1. caesariata, but the pileus has apparently at first a definite 

 continuous glabrous cuticle, which under certain weather conditions 

 easily cracks to form scales, that is, becomes diflfracted-scaly ; while 



