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Key To THE Nortu American GENERA OF 
AGARICACEAE 
KEY TO THE TRIBES 
_ Hymenium plicate, covering obtuse folds: spores whit 
Ca sOoHAREREEAR 
menium covering true lamellae 
. Cells of the sporocarp in part eae ee: vecicularé spores ate 6 
JEMOW se Be a ewe eS Sheer, 
Cells of the e sporocarp all eieaaens caeuines spores bleek, anil 
pink or white . : ARICEAE. 
Tribe I. CANTHARELLEAE 
. Sporocarp tough, coriaceous or woody, reviving. ...... eas 2s 
Sporocarp fleshy or membranous, putrescent, not oe ae 4. 
Stipe lateral or wanting. . 2... 2... 2. eee LICATURA. 
Stipe:céntral’ ? abo ee ee ee ae a ae a 3. 
. Pileus thick, firm, woody ........ +. . . 2, NMEROTINUS. 
Pileus thin mierneradons, fabuiar (see below oe Soar ae . TRoGiaA). 
. Stipe eccentric, lateral, or wanting .......... 3. DicrvoLus. 
Stipe centralornearlyso .... 2... 2.0... we Le 5. 
. Densely connate-cespitose : piles ieeepulat vas aa eG 4. MERIsMopES. 
Scattered or gregarious: pileus regular or nike SO... 6. 
. Pileus turbinate, infundibuliform or tubul fe 0s a aks kee A eee Oe ve 
Pileus convex or depressed, fleshy ......... : 
Pileus thin, membranous. ...... ei Ba Se Se Ge Na 2 — GIA 
Pileus thick, tough and somewhat corky « i 6. TUR en 
. Lamellae much forked... ..... bo y. yer er cpeaninniny 
Lamellae simple... .......2.... 8. ASTEROPHORA. 
Tribe II. LACTARIEAE 
Cells of the sporocarp lactiferous, bleeding when cut. ...... 2. 
Cells of the sporocarp non-lactiferous, not bleeding. ...... . 5 
Lamellae at first pallid, becoming darker withage. 9. HyPorHyLLuM. 
Lamellae uniformincolor, unchanging. . . ir iets Ao cet 3. 
. Pileus dry, glabrous, ation ta coe Botta Sot te Be 10, LACTARIA, 
Pileus pelliculose, usually visci SOs Gy i ola iat ae ede ee 4- 
Pileus glabrous, slimy- viscid, margin expanded. . . II, GLOEOCYBE. 
Pileus tomentose, margin involute . . .12, GALORRHEUS. 
. Pellicle adnate to the pileus or none... .. . Be as ene ok he Dee 6. 
Sree easily separable © 2 1-0 ee ee ee : 
Pileus thick, involute, umbilicate or infundibuliform . 13. LacTERELIS. 
pilew thin, convex to expanded or depressed... .. . Pe 
