THE NATURALIST 



FOR 1902. 



NEW YORKSHIRE AGARICS. 



GEORGE MASSEE, F.L.S., F.R.H.S., 



Royal Herbarium, Kew ; Chairman of the Yorkshire Mycological Committee. 



AND 



. CHARLES CROSSLAND, F.L.S., 



Halifax ; Hon. Sec. Yorkshire Mycological Committee. 



Mycena cinerea Mass.&Crossl. (sp. nov.). 



Entirely grey or dull lead colour ; smell strong, resembling 

 radishes. Pileus 1*5-2 cm., slightly gibbous or obtuse, soon 

 expanded, margin striate, paler and silky when dry; gills 

 adnate, rather distant, mealy with the spores, edge paler ; 

 spores elliptical, smooth, white, 8x5/1, cystidia fusiform ; stem 

 5-7 cm. long, slender, cylindrical, glabrous, fistulose, base 

 downy, white. 



Among short grass. First collected at Selby, Yorks., after- 

 wards met with at Louth, Lines., and at Kew, Surrey. 



Apparently not uncommon, and probably passed over as 

 M. metatci Fr., which differs in the absence of smell, and white 

 gills. Most nearly allied to M. plnmbea Fr. , recently found in 

 this country ; the latter, however, differs in the sulcate pileus, 

 white apex of stem, and absence of smell. 

 Coprinus Gibbsii Mass.&Crossl. (sp. nov.). 



Very minute, 0*5 mm., hemispherical then expanded, striate, 

 glabrous, minutely atomate, pale ochraceous, disc darkest ; gills 

 adnate, 5-7 in number ; spores subcircular, compressed, smooth, 

 purplish-brown, 8-9 \x diam., 5 \x thick; cystidia broadly piri- 

 form, 40 x 25 jj. ; stem 4-7 mm. long, very slender, white, 

 pellucid, glabrous, attached by a few white strands of mycelium. 



On horse-dung. Near ■ Sheffield, collected by Mr. T. Gibbs, 

 November 1901. 



Probably the smallest Agaric known. Differs from its nearest 

 ally, C. radiahis^Berk., which also occurred in profusion on the 

 same substratum, by its smaller size, glabrous pileus and stem, 

 and more especially in its circular, compressed spores. 



