SYSTEMATIC AND FLORISTIC NOTES 

 ON THE SPECIES. 



A. COMATI. 



1. Coprinus comatus (Schum. in Fl. D.). 



Spores 11V 2 — 14 x 7— 8V 2 , ovate-oval. — Surface of cap formed 

 of septate, mostly 7 — 16 ja thick filaments (1914). 



Figured specimens: Fruens Bøge, border of lane, Oct. 1896. — 

 Common on roadsides, grassy lanes, wood-paths etc. ; more rarely 

 met with in cultivated fields on rich soil. — C. ovatus Schaeff., 

 like other modern authors, I regard as a mere form of this 

 species. 



2. C. sterquilinus Fr. 



Spores ovate-ellipsoid, very large, 15—23 x 10—13 u, when ripe 

 very dark and opaque. 



Fig. specim.: Horsens, on heap of old dung from hotbed, 

 Aug. 1909. — Also found in Fruens Bøge, on heap of horse-dung 

 in garden, Sept. 1910. 



The ring is either free or attached to the base of the stem, 

 (thus forming a volvaceous edge). The young cap is white, 

 squarrosely scaly. The stem turns black with age. 



3. C. atramentarius (Bull.). 



Spores ovate-ellipsoid, 7 l / 2 -8 x 5u(I) or 9 x 5 x / 2 u (II). — Scales 

 on cap made up of filaments formed of cylindric cells; cystidia 

 cylindric-sackshaped, about 25 u broad (1914). 

 " Fig. specim. : Hjallese, on the ground close by a wooden 

 frame, July 1897 ; and at the base of an old Populus, Sept. 1898. 

 — Very common, especially at the base of trees on rich soil, 

 generally clustered. — A white variety was found by me in 

 1914 in a garden. 



[C. soboliferus Fr. seems to be nothing but a large form of 

 this species. — On the ground in moist foliaceous woods a 



