SYSTEMATIC AND FLORISTIC NOTES. 



I. ENTOLOMA. 



A. OVISPORÆ (LEPTONIDEI FR.). 



1. R. dichrous (Pers,) 



Spores 9 — lO 1 ^ X ß 1 ^— 7 u, ovate, obtusely angular. Basidia 

 4-spored. Edge of gills formed of cvlindric-hairshaped, 6 — 7 \x 

 broad cells. Squamules on stem made up of cylindric, up to 

 9 u broad cells with bluish-gray content. 



Figured specimens: Husmandsskolen near Odense, on the 

 ground amongst grass and foliage in wood of Quercus and 

 Cory lus, solitary, Oct. 1919. 



This species is very well characterized by the bluish-fuscous 

 stem, all over sparsely set with minute blackish flocci. Ricken 

 (loc. cit.) gives a very good description of it. It has a habitual 

 likeness to Tricholoma terretim. 



2. R. porphyrophæus Fr. (/?. siibrubens Karst.) 



Spores 10 — 12 X 6 ju, obtusely angular-wavy. Cystidia inflated, 

 large, flask-shaped, occasionally with a roundish head. 



Fig. specimens: Hesbjerg near Tommerup, growing aggregately 

 in a meadow in wood of Fagus, Oct. 1901. Also found at Langå 

 (Jyll.) in similar locality, 1914. 



I do not see any real divergence between porphijropbæus and 

 siibrubens. Fbies places R. p. in Genuini, but it is related lo R. 

 jubatum, and the spores also indicate its proper place to be in 

 Leptonidei. — Kaksten (Symb. ad Mycol. Fenn. VI) describes 

 the stem (of R. subrubens) as hollow, at first furfuraceo-squamu- 

 lose then glabrous, the gills as white, turning sordidly incarnate. 

 Fries (Icones selectæ) has (for R. porphyrophæus) »lamellæ primo 

 griseo-albidæ, dein sporis griseo-rubellæ« and »slipes nudus sed 

 impolitus, opacus ... solidus«. In my specimens the stem was 

 slightly furfuraceo-squamulose and librillose-striate with a very 

 narrow cavity, the gills at first white then dusky incarnate. 

 These differences appear to me too slight to make good any 

 claim to specific distinction for the two. 



