Jakob E. Lange: Studies in the Agarics of Denmark. IV. \\ 



The form B. had darker (almost ferrugineous-fuseous) stem 

 and broader, more triangular gills than A. — Rather rare; but 

 on fallen sticks of Picea an intermediate form between nos. 16 

 and 17 is not rarely met with. It seems to me that the speci- 

 fic value of P. unicolor is rather dubious; it is hardly more 

 than a small and dwarfy form of P. marginata. 



18. P. mycenoides Fr. (?) 



Spores 10 — 11 x 67a u, ovate (1898) or 9—10 x 6 u, somewhat 

 lemonshaped (1914—17). Cystidia obtuse, cylindric-hairshaped, 

 base slightly swelled, total length about 30 u, base 9 u, apex 

 5 — 6 fi. Basidia 4-spored. 



Fig. specimens: Holstenshus, growing on Sphagnum in a bog, 

 July 1898 (and Sept. 1909, July 1914 and 17). 



I add a brief description of this little Galera-like fungus : Cap 

 1^2 — 2 cm, conic-convex with small umbo, pellucido-striate, at 

 first gilvo-ochraceous, then somewhat ferrugineous, strongly hy- 

 grophanous. Stem slender (7 — 8 cm x 2 mm), paler than the 

 cap, with a little cottony ring that soon disappears, above the 

 ring slightly mealy and just below the ring with some few 

 scattered white, fugacious squamules. Gills rather crowded, 

 broadly adnate with a slightly decurrent tooth, ochraceous. 



On account of its fugacious ring I refer this species to Pho- 

 liota; but it is very closely allied to the hypnophile Galeras and 

 Tubarias. Pholiota muscigena Quélet appears to me (to judge 

 from his description) very nearly the same plant; and Tubavia 

 paludosa Fr. forma stygia (Icones selecta pag. 28) chiefly differs 

 in the even, not pellucido-striate cap. — The typical P. myce- 

 noides (of Fries) differs from my plant in having a »membrana- 

 ceous, entire and persistent« ring (Fries: Monographia I pag. 321). 



For figures of spores and cystidia of the several species 

 vide the plate. 



