NATURAL II 1ST 01; \ 81 li\ El _' ] 



26 With an annulus 



Without an annulus 



27 Lamellae free Agaric 



Lamellae adnate Stropharia. 



28 Lamellae sinuate, cortina often fringing the 



margin of the pileus, stem fleshy Hypholoma. 



Lamellae adnate, stem cartilaginous 



29 Margin of pileus incurved when young. Psilocybe. 

 Margin of pileus always straight ... Psathyra. 



30 Lamellae deliquescent prinus. 



Lamellae not deliquescent :;| 



.*H Pileus fleshy, margin not striate ring waul- 

 ing Panaeolus. 



Pileus as in Panaeolus, ring presenl Anellaria. 



Pileus membranaceous or slightly fleshy, 



striate or sulcate Psathyrella. 



Pileus fleshy, lamellae decurrent, subgelatin- 

 ous Gomphidius, 



FAM. II. POLYPORACEAE. 



1 Plant fleshy, putrescent, stem central or nearly 



so 2 



Plant coriaceous, horny or woody (fleshy in 

 some species of Polyporus but becomingdry) ... 



2 Tubes long, easily separable from the pileus 



and from each other Boletus. 



Tubes less easily separable, pileus and stem 



squarrose-squamose Strobilomyci 



Tubes with mouths distinct from each other; 



stem lateral Fistulina. 



Tubes in radiating rows, not easily separable, 



stem often eccentric Boletinus. 



3 Tubes in a distinct layer, preformed, no1 sep- 



arable, not stratose; fleshy or tough hut not 



woody; stipitate or sessile Polyporus. 



Tubes as in Polyporus but usually stratose; 

 pileus woody from the first, usually sessile. Foe 



Tubes as in Polyporus, not stratose, develop- 

 ing from the center outward toward the 

 margin of the cap; coriaceous or mem- 

 branaceous Polystictu 



Tubes as in Polyporus or Polyst ictus; plant 

 resupinate, effused, with no true pileus; 

 waxy, coriaceous or membranaceous Poria. 



Tubes extending to unequal depths into the 

 substance of the pileus, not forming a dis- 

 tinct stratum; sub-cylindrical, corky, not 

 stratose, sessile or resupinate Tramef 



Tubes as in Trametes, but sinuous to laby- 



rinthiform; corky, not stratose. sessile Daedalea. 



