40 Dansk Botanisk Arkiv, Bd. 2, Nr. 3. 



small, rather solitary-growing form is occasionally met with. 

 This variety has an almost naked cap and probably is identical 

 with C. fuscescens Schaeff.]. 



4. C. dilectus Fr. 



Spores ovate-ellipsoid, 10 x 6 |u. Edge and surface of gills set 

 with ovate, vesiculose cystidia (average breadth 23 u). The red 

 filaments on the cap are (sub micr.) pale yellow, about 11 (J 

 broad. 



Fig. specim.: Hjallese, in copsewood, on rubbish-heap (sticks, 

 coke, decaying boards etc.), aggregate, Aug. (and Sept.) 1904. 



The young cap and the stem (especially towards the base) 

 are clad with a very subtile, arachnoid felt of orange-red colour. 

 The base of the stem is pilose, but has no true volva. 



C. intermedins Penz. and C. roseotinctus Rea seem to be almost 

 identical, although the coloured veil is described as »mealy«. 



5. C. picaceus (Bull.). 



Spores broadly oval, 16— 18X12— 13 u (or 13— 17 X9V 2 — 12ja). — 

 Felty coating on cap made up of septate, wavy, about 7 u broad 

 filaments (1914). 



Fig. specim.: Brahetrolleborg, wood of Fagus, Sept. 1897. — 

 Common in woods of Fagus, growing solitary on the ground. 



6. C. aphthosus Fr. 



Spores broadly lemon-shaped, 87 2 — 10 X 5 1 /*— 6V»m black, opaque. 

 Cystidia vesiculose, cylindric-oval, 50—75 X 20 — 27 (a. 



Fig. specim.: Hjallese, in rotten trunk of Salix capræa, Oct. 

 1901. (Also found on stump of Salix, Juli 1903). 



Coating on young cap cottony-felty, later on forming small, 

 somewhat arachnoid scales. 



7. C. Rostrupianus E. C. Hansen. 



Spores oval or ovate-oval, mostly 12— 15x7— 8 ju, opaque, 

 brownish-black. Cystidia vesiculose, ovate-oblong, about 85 X 38 ja. 

 Coating on cap made up of hyphæ formed of irregularly cylin- 

 dric, 12 — 20 |u broad cells. 



Fig. specim. : Ærholm, alongside a road, on soil mixed with 

 horse-dung, Sept. 1913. — Also found in similar localities, Hjallese 

 and Lindvedgaard, July 1914. 



No sclerotia found. But for the rest the description by 

 E. Chr. Hansen (Bot. Zeitung 1897) fits my plant well. From 

 C. niveus it is widely different; but the larger specimens approach 

 the description of C. exstinctorius Fr. 



8. C. velatus Quel, (forma substerilis). 



Spores oval, 11 — ll 1 / 2 x 5 a / 4 — 6 \x, translucid, pale brown (in my 

 specimens rather scarce and often atrophiate). 





