Coprinus. 239 



Stem glabrous. 



[auricomus, Pat P. elliptic-oblong then campan. finely striate, 

 pale greyish red disc darker, glabrous, 1'5 2 cm. ; g. adnate ; s. 

 5 8 cm. white, glabrous ; sp. 



Young plant enveloped in a golden yellow weft ( = Ozonium). 



congregatus, Fr. P. cylindrical then campan. edge slightly 

 striate, glabrous, viscid, ochre, 1'5 2 cm.; g. slightly adnexed; s. 

 2 3 cm. smooth, hollow, white ; sp. 



alternatus, Fr. P. hemisph. then discoid, even, glabrous, chalk- 

 white disc pale umber, 3 cm. ; g. adnate; s. whitish, hollow, 7 10 cm. ; 

 sp. 10 x 67. 



digitalis, Fr. P. ovate then campan. whitish disc darker, glabrous, 

 striate up to disc, 2'5 cm. ; g. slightly adnexed ; s. 3 5 cm. whitish, 

 equal ; sp. 



When mature the p. is sometimes livid olive or yellowish grey, 

 and g. appear to be adnate. 



[diapnanus, Q. Every part translucent and glabrous. P. grooved, 

 edge crenulate, silvery with a central tawny spot, 5 7 mm. ; g. 

 adnate ; s. capillary, glabrous, 2 3 cm. ; sp. 12 long. 



Differs from C. plicatilis in adnate g. 



[sceptrum, Fr. P. campan. papillately umb. deeply sulcate, 

 pellucid, tinged grey ; g. adnate to a collar ; s. pellucid. 



erythrocephalus, Fr. P. cylindrical then campan. reddish vermi- 

 lion becoming grey, silky, edge very finely striate, 1 cm. ; g. slightly 

 adnexed ; s. 2 3 cm. paler than p. 



j- f Gills free, sometimes attached to a collar. 

 Stem downy or pulverulent. 



[Gpdeyi, Gillet. P. subglobose, distantly grooved, glabrous, 

 pellucid, disc ochre, grey between the ribs, 3 4 mm. ; g. free ; s. 



2 cm. pellucid, sprinkled with white flecks below. 



[semistriatus, Pat. P. ovate then campan. glabrous, disc even, 

 yellowish, striate and grey up to disc, 1 cm. ; g. attached to a collar ; 

 s. 1 2 cm. white, pruinose ; sp. subcircular, compressed, 12 14 broad, 



3 thick. 



Stem glabrous. 



plicatilis, Fr. P. thin, cylindric ovate then plane, glabrous, 

 coarsely grooved, pale brown then greyish, disc broad, even, at length 

 depr. darker, 1 2 cm. ; g. attached to a distant collar ; s. 5 8 cm. 

 white, smooth, hollow; sp. 11 13 x 8 9. 



deliquescens, Fr. P. ovate then campan. at length exp. livid 

 grey, disc rufescent, papillose, otherwise glabrous, 3 7 cm. ; g. free ; 

 s. 7 10 cm. white, glabrous, hollow ; sp. 8 x 5. 



Differs from C. atramentarius in free gills. 



