5fi Cincinnati Society of Natural History. 



14. ScHizoPHTLLUM. — Fungi coriaceous; lamellae with the edge split 

 and re volute. 



15. Lenzites. — Fungi corky; lamellre coriaceous. 



Genus I. — Agaricus, Linn. 



Laraellif membranaceous, soft, persistent, not tough nor deliquescent, 

 easily separable into two la^'ers, the edge acute; trama subfloccose; 

 universal veil never cobwebb}-. 



The subgenera of the genus Agaricus are arranged in five series, 

 according to the color of the spores, as follows: 



1. Leucospoki. — Spores white or whitish. 



2. IlypoRHODii. — Spores rosy or reddish. 



.^. Dermini. — Spores subferruginous, argillaceous or ochraceous. 



4. Pratelli. — Spores purplish or brown. 



5. Coprinarii. — Spores black. 



TABLE OF THE SUBGENERA OF LEUCOSPORI. 



A. Stipe central and veil present, 

 a. Lamelloi free from the stipe. 



1. Amanita. — Universal veil discrete from the epidermis of the pileus. 



2. Lepiota. — Universal veil concrete with the epidermis of the 

 pileus. 



Ii. Lamelloi attacked to the stipe. 



W. AuMiLi.AKiA. — ^'c'il partial, nnnuliforni. 



li. Stipe central., veil absent. 



c. Stijye fleshy or fbrons. 



4. 'I'richoloma. — Lamella' sinuate. 

 .'). CLrrof'vi'.i;. — Tvamelhi' decurreiit. 



d. Stipe cartilayinous, lamellae not decurrent. 

 (I. CoLLYBiA. — Pileus convexn-plano, the margin at first involute. 



7. INIvcKNA. — Pileus campanulate, thn inarLriii straight. 



e. Stipe cartilayinou.s-, lavielUv decurrent. 

 R. O.MPHALiA. — Pileus more or less umbilicate. 



C. Stipe excentric or none. 

 '.). Plel'Kotus, — Pileus irregular or .sessile. 



Subgenus I. — Amanita, Fr. 

 Spores white. Universal veil (the volva) at first contiguous, discrete 



