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Fl.cell.apL 4. CENOTHALAMEiE. 40&
A. yipothecia nearly glolose, not holdered, terminai'ing a
solid podeiium. BEemycideae.
Thallus shriiblike, branched, cartilaginous;
bark crustaceous, unequal Stereocaulon. 9K
Thallus rather crustaceous, uniform,
lying close; apothecia at first bordered Isidium. 92-
Tkallus crustaceous, uniform, close;
podetia soft; apotliec'ia large Bjemyces. 93.
B. /Ipothecia nearly globose, not bordered, terminating a
hollow, cylindrical thallus or podeiium. Cenomycidese.
Thollus cylindrical, soft, awishape ;
axillcB not perforated Cerania. 94^
Thallus leaflike, very small ; podetia cartilaginous,
stifTj awishape ; axillce mostly
perforated Cladonia. 95.
Thallus leaflike; podetia cylindrical;
apex fringed, radiated, rays fertile Helopodia. 96.
Thallus leaflike; podetia dilated above,
cuplike, cup open Schasmaria. 97-
Thallus leaflike; podetia dilated above,
cuplike, cup closed , Scyphophora.
Thallus crustlike, uniform
podetia hollow, short . = Pycnothelia.
98.
99^
C. Apothecia shieldlike., bordered, lateral ; thallus nearly
crustaceous, branched. Evernideee.
Thallus compressed, inside towlike;
apothecia sessile, circumference raised .... Evernia. 100-
D. Apothecia shieldlike, bordered ; thallus leatherlike,
cartilaginous, leafy.
Peltideas.
Apoth. adnate, terminal, ascending ;
thallus leaflike, lobed, expanded Peltidea. 103.
Apoth. adnate, terminal, resupinate;
thallus leaflike, lobed, expanded Nephroma. 102.
Apoth. adnate, subcentral, discoid
thallus leaflike, lobed, expanded Solorina. 104-.
Apothecia sessile, lateral
iAoZ/i/5 branched, inside tovvlike Rocella. 101.