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



what mucronately papillous. When expanded the cap is obtu- 

 sely campanulate-convex, fisso-sulcate almost to the centre, 

 lVj— 2V 4 cm across, pale grayish. The stem is glabrous, rather 

 short (3 cm x 2 mm), base slightly bulbous and set with squa- 

 mules like the cap. Gills free (but without a collarium), at first 

 pale lilac-brown, then black. Sporepowder black. 



I refer this species to C. angulatus Peck, which as far as I 

 know has not been met with in Europe before. C. Patouillardi 

 Quel, and C. papillatus Batsch as well as C. Coffece Comes may 

 however be identical. When only half-way expanded it has a 

 superficial likeness to C. disseminatus; when expanded it is not 

 unlike a little C. domesticus. 



24. C. micaceus (Bull.). 



Spores lemon-shaped, 8—11 x 5 (or 7V 2 — 10 x 4— 5 u]. 



Fig. specim.: Hjallese, on and around stump, Oct. 1896. — Very 

 common, densely clustered, at the base of trunks (of foliaceous 

 trees) or on the trunks themselves. 



C. NUDI. 



25. C. tardus Karst. 



Spores broadly lemon-shaped, 12— 15 x 7— 9 u, opaque, black. 

 Cystidia vesiculose, very large, conically flask-shaped, up to 24 u 

 broad. The surface of the cap is sparingly set with minute, 

 erect, hyaline setulæ or bristles (cystidia?), about 120 u long. 



Fig. specim.: Hjallese, fasciculate, on clayish soil, open space 

 in wood, Oct. 1898. — Not uncommon, till late in the autumn 

 (1912 even in January), in woods and gardens. Its habit is 

 intermediate between C. micaceus and C. impatiens, but it is 

 larger than either. (But for the »höckerig-rauen« spores C. ter- 

 giversans Ft. (sensu Ricken) would be almost identical). 



26. C. disseminatus (Pers.) Quel. (Psatyrella disseminata Ft.). 



Spores 8 1 /* — 9 x 47 2 — 5 u. Cystidia 0. Surface of cap with 

 a) globular cells (about 40udiam.), b) cylindric, erect cells (100— 

 130 u long) with somewhat granulate membrane. The cylindric or 

 borst-like cells are also met with on the edge of the gills near 

 the margin of the cap. 



Fig. specim.: Hjallese, on and around stump ofPopulus, June 

 1896. — Very common about stumps and trees (especially Populus) 

 in dense masses (consisting of hundreds and hundreds). Several 

 generations (3 — 4) may appear on the same stump, some six 

 weeks after each other. 



