30 Dansk Botanisk Arkiv, Bd. 2, Nr. 11. 



not iibrillose. It has a faint smell (of fresh meal or raw cucum- 

 ber). — Like Schroeter I see no real difference between R.lividus 

 and R. sinuatus. 



7. R. prunuloides Fr. 



Spores 8 — 10 x 7 x / 2 |u, globose-ovate, obtusely angular. 

 . Fig. specimens: Hjallese, under Populus on roadbank, solitary, 

 June 1898. (Also on old common near Nyborg (»Øen«), Sept. 1905, 

 and at Dalum, on grassy slopes towards river, Sept. 1905.) 



8. R. repandus (Bull.) 



Spores about 7 l j. 2 ja in diam., almost spheric, obtusely 5-(6-) 

 angular. Basidia 4-spored. 



Fig. specimens: Tommerup, in grass on green slope between 

 wood and bog, Sept. 1908. (Also at Langesø, near Odense, in 

 similar locality Oct. 1914. — The cap is slightly viscid at first, 

 when dry somewhat shining or glossy. The gills are crowded, 

 emarginate-free. It has a faint odour of fresh meal or raw 

 cucumber. 



|3. NOLANIDEI FR. 



9. R. clypeatus (L ) 



Spores 8 — 10 x 7V 3 — 8 u, outline spheric or globular-oval. 



Fig. specimens: Odense, on the ground in orchard, gregarious 

 and subfasciculate, June 1898. Rather common in May and 

 June, under hedges etc. 



It has a distinct »mealy« odour. Specimens with paler cap 

 and more pallid-whitish gills — which are not uncommonly to 

 be met with — form a transition to R. rhodopolius. 



10. R. rhodopolius Fr. 



Spores 10— 10V 2 x 7—8 u, obtusely pentangular, ovate-subglobu- 

 lar. Basidia 4-spored. 



Fig. specimens: Vissenbjerg, wood of Fagus, Sept. 1908. — 

 Common, generally gregarious, but never fasciculate. The typi- 

 cal form is chiefly to be met with in woods of Fagus. 



An absolutely sterile form, with pure white, abnormally ruffled 

 and curled gills, is occasionally found. 



11. R. turbid us Fr. (?) var. 



Spores 9 — 10 x 6 1 / 2 — 7 u, irregularly (6-)angular, broadly ovate. 



Fig. specimens: Lundeborg, wood of Quercus, Aug. 1917. 



Typical specimens of R. turbidus — answering to Fries' de- 

 scription and figure (Icon. sei. I) — I have never seen. But the 

 form here portrayed (which I refer to R. t.) I have met in several 

 places, especially under Betula on boggy ground. It is very close 

 lo R. rhodopolius, perhaps only a variety of this species. I add 

 a brief description : 



