Jakob E. Lange: Studies in the Agarics of Denmark. II. 47 



27 a. C. ephemerus (Bull.). 



I) Spores ovate, 10 x 6V 2 u - Cystidia vesiculous. [Also spores 

 9V 2 — 10x5 — 5 x / 2 u , ovate-ellipsoid, dark brown ; basidia 97 2 u broad, 

 paraphyses 15 — 25 u. Hairs on surface of cap 46 — 60 u long, 

 smooth. Cystidia on gills about 16 ^ broad, with or without a 

 bottleneck-like contraction of the upper portion. 1914]. 



Fig. specim. : Hjallese, on path in foliaceous wood, July 1897. 

 (1914, in similar locality, Killerup, October). 



II) Spores 10-16x6— 8 u (mostly 11— 15 x 6V 2 — 7 x / 2 H) blackish 

 brown. Setulæ on cap about 50 u. Cystidia on gills globular or 

 somewhat conical, free portion up to 50 (i long. 



Fig. specim.: Killerup, on roadside-bank behind a wood, Oct. 

 1901. — The two forms are almost identical, only the spores 

 differ materially in size. 



[On horse- and especially cow-dung in pastures a fungus is 

 met with everywhere, which I cannot clearly distinguish from 

 C. ephemerus (II). Like other coprobious Coprini it varies very 

 much in size (unexpanded cap 2 — 13mm high); small specimens 

 are generally pale, the bigger ones subochraceous. It is rapidly 

 diffluent (much more so than C. ephemerus I and II). From 

 all other coprophile species it is most easily distinguished by 

 the minute erect setulæ on the — apparently naked — young 

 cap. To this type evidently belong C. proximellus Karst., C. con- 

 ditus Gill, and probably also Psatyrella subtilis Fr. See also 

 additional note page 50]. 



27 b. C. ephemerus (Bull.) var.? 



Spores ellipsoid, opaque, 11— 13 X 6 1 /*— 7 u, Setulæ on cap 60 u. 

 Fig. specim.: Hjallese, on heap of rubbish and rotten sticks, 

 July 1903. — Differs from large specimens of no. 27 a chiefly by 

 its larger (2 cm high), at first dark brown, when expanded some- 

 what paler, campanulate cap. — The stem is setulous like 

 the cap. 



28. C. impatiens (Fr.) Quel {Psatyrella impatiens Fr.). 



Spores ovate-oval 8V 8 — 11 x 6 (or 9 l / 8 — 12 x 5-6 x / 2 u). Cystidia 

 somewhat flask-shaped or almost like the hairs of the nettle. 

 [1914: Surface of cap with erect setulæ (cystidia) (about 100 ^ 

 long). Hymenium of the Coprinus-type, with sterile cells (para- 

 physes) between the fertile basidia. Spores dark date-brown, 

 slightly pellucid. Sporepowder blackish-brown]. 



Fig. specim.: Trolleborg, in wood ofFagus, border of meadow, 

 Sept. 1897. — Not uncommon, especially in the outskirts of 

 foliaceous woods, on the ground, solitary or scattered. 



Easily recognized by the cap, which, even before expanding, 

 is deeply grooved (short and long grooves alternating in a very 

 regular manner). Whether C. (Psatyrella) hiascens is a species 

 really distinct from C. impatiens appears to me rather dubious. 



