Surface distinctly tomentose 
Context thin, translucent 
Context thick, opaque 
Surface tessellatej stijie distinct 5*. subcaperata 
F, reniformis 
Surface not tessellate; stipe a 
Pile8s purple or brown 
Stipe i^cfcKxxixax eccentric; 
circular 
Stipe lateral; tubes 
mere tubercle 
F, caperata 
tubes 2,5 mm 
F. 
1.5 mm long; pileus 
F. 
long; pileus sub- 
subpurpuras cens 
spatulate 
purpuras cens 
F. 
F. 
porto ricensis 
hondurensis 
Hexagona 
H. indurata 
regularly 
unchanging 
H. brunneola 
H. cucullata 
hexagonal 
Micro£>orellus 
M. 
M. 
de alb at us 
uriguicularis 
Stipe central 
Margin entire 
Margin ciliate 
Tubes regularly hexagonal 
Pileus purple 
Pileus yellow or brown 
Tubes merulioid 
Tubes of normal length 
Tubes circular or if angular, not 
Surface zonate 
Pileus white or pale brown, 
Tubes entire 
Tubes lacerate ... 
Pileus ochraceous or sordid becoming bay or black with age 
or on drying 
Pileus ochraceous becoming bay M. porphyritis 
Pileus sordid becoming black M. holotephrus 
Surface not zonate Polyporus(sensu strictofc 
Stipe pallid or light brown, central, not darker than nileus 
Margin not ciliate 
Pileus with hydnoid processes near margin 
P, hydniceps 
Pileus villous, tomentose or scabrous, becoming glabrou s 
in age, dissepiments dentate 
Pileus scabrous , irregular, umbrinous, margin involute 
stipe scabrous, tubes small 4 per mm, ^xjiXKjaaRKiiJbs 
p, scabriceps 
Pileus villous or tomentosevi rgate from rupture of cuti- 
cle; tubes 2 per mm, decurrent P. virgatus 
Pileus minutely tomentose or glabrous from the first 
Sporophore goblet shape, pileus leas than 3 cm broad, shall c. 
ly depressed at center, stipe long, striate, expanding 
into pileus P, Tuba 
Sporophore trumpet shaped; pileus 5-10 cm, deeply infundibuli- 
form; stipe 3 cm, pallid, pulverulent 
p, craterellus 
Sporophore not as above 
Pileus 2 mm in diam,umbilic te, margin involute, pores 
alveolar P, Acicula 
Pileus 10 cm or more, surface umbrinuus, stipe hispid 
P. discoideus 
Pileus 2-5 cm, white, context white, 1 mm or less thick, sti_ 
central P, obolus 
Margin of pileus ciliate, disappearing in age 
Tubes alveolar, margin of pileus finely hi spid, broadly sterile 
below, surf ace ochre, radiate striate; stipe brown culver, 
lent p aenulans 
