SYSTEMATIC LNDEX. 



Order I. AGARICINI. Fr. 



Hymenium inferior, spread over radiating gills. 



Gknus I. A,GARICUS, Linn. 

 Gills membranaceous, persistent, with an acute edge, trama 

 floccose. 



Sect, A. Leucospori. White spored. 



Sub-Genus 1. Amanita, Pers. Universal veil free from 

 the cuticle ; stem distinct from the hymenophore, furnished 

 with a volva at the base. Gills free. 



* Ring manifest, superior. 



a. Volva splitting at the apex, border free, per- 

 sistent. 



b. Volva cut round above the bulb, border mem- 



branaceous. 



4. Ag. mappa, Fr. 



c. Volva definitely cut around, base marginate, 



persistent, calyptra broken into thick warts 

 scattered over the pileus. 



