39 



6. Pileus with innate brown squamules. 

 Pileus floccose-tomentose, then glabrate. 



C. alramentarius (Bull.) Fr. 

 ('. qundrifidus Pk. 



Coprinus — Sec. III. 



Spores roughened ; pileus cainpanulate, grayish-brown. C. insignis Pk. 



Spores smooth. 2. 



Pileus smooth or rimose ; spores subhyaline. C. fuscescens (Schaeff. ) Fr. 



Pileus with innate brown scales; spores fuscous. C. stenophyllus Mont. 



Coprinus — Sec. IV. 



1. Universal veil thick, breaking into persistent patches. 

 Universal veil breaking into scales or fibrils. 

 Universal veil breaking into mealy granules. 



2. Pileus calyptrate ; spores large, 15-20//. 



Pileus with broad white patch-like scales ; spores 8-10, 



3. Lamellae attached to the stipe. 

 Lamellae free. 



4. Prevailing color white or gray. 

 Prevailing color yellow or brown. 



5. Small ; pileus I cm. broad or less. 

 Larger ; pileus reaching 2-3 cm. in width. 



6. Pileus pure white. 

 Pileus gray or pallid. 



7. Pileus soon expanded, fuscous. 



Pileus cylindrical or campanulate, pale ochraceous. 

 Pileus campanulate, fuliginous, disc spadiceous. 



8. Prevailing color white or gray. 

 Prevailing color yellow or brown. 



9. Stipe glabrous. 



Stipe floccose, at least when young. 



10. Spores navicular. 



Spores curved, stipe reddish. 



Spores globose. 



Spores ovate ; pileus 2-5 cm. broad. 



Spores ovate or oval; pileus 8-12 mm. broad. 



11. Pileus plumbeous, disc fuscous. 

 Pileus pale fuscous, subglobose. 

 Pileus pale buff, campanulate. 



Coprinus — Sec. V. 

 I. Pileus campanulate, fulvo-ferruginous. 



Coprinus — Sec. VI. 



1 . Pileus more or less scurfy or scaly. 

 Pileus glabrate. 



2. Lamellae attached to the stipe. 

 Lamellae free. 



C. semilanatus Pk. 



C. calyptrattis Pk. 



; long. C. ebttlbostis Pk. 



4- 

 8. 



5- 



7- 



C. brasiicae Pk. 



6. 



C. ntveus ( Pers. ) Fr. 



C. laniger Pk. 



C. Seymour i Pk. 



C. i-irgineus Bann. & Pk. 



C domesticus ( Pers. ) Fr. 



9- 



11. 



10. 



C. Jones ii Pk. 



C. Cu ben sis B. & C. 



C. Spragitei B.& C. 



C. rolundisporus Pk. 



C. arenatus Pk. 



C. nycthemerus Fr. 



C. plumbeus Pk. 



C. subglvbatus B. & C. 



C. lacernta Pk. 



C. micacetis (Bull.) Fr. 



