— 95 — 
EE. Podetia pitted C. reticulata. 
DD, Covered with fine squamules C. squa?nosa. 
CC. Gray powdery-sorediate C. cenotea. 
BB. Cups never perforate. 
C. Corticate and smooth. 
D. Gray or brownish green. 
E, Proliferations from margins of cups. 
F. Cups regular, squamules few or none C. gracilis. 
(C. gracilis v. chordalis and e long at a may also be 
sought here). 
FF. Cups irregular, podetia squamulose. 
C. gracilis v. dilatata. 
EE. Proliferations from center of cup C. verticillata, 
DD. Yellowish-green C. amaurocrea. 
CC. Podetia warty or decorticate. 
D. Powdery-sorediate. 
E. Cups regular and simple C Jimbriata. 
EE. Cups irregular and proliferous. . . C. jimbriata v. radiata. 
DD. Not powdery-sorediate, 
E. Areolate- warty, cups ample. 
F. Simple or nearly so C.pyxidata. 
FF. Luxuriantly proliferous C. degenerans. 
EE. Scurfy-granulate, cups reduced C. pityrea. 
Sub-Sect. 2 . Squamules always present, strikingly large, creamy-yellow 
on underside C. foliacea v. alcicornis. 
Alphabetical list of the species and varieties with the authors and with 
synonyms used in Tuckerman’s “Synopsis of North American Lichens.” 
Cladonia alpestris (L ) Rabenh. {Cl. rangiferi7ia var. (L.) Schaer.) 
“ amaurocrea (Flke.) Schaer. 
bacillaris Nyl. {Cl. macilenta (Ehrh.) Hoffm. in part.) 
“ bellidijlora {ACh.) SohOiev. 
“ caespiticia (Pers.) Flke. 
(Ach. ) Spreng. 
“ “ V3.X. corticata'^Cirdo. {Cl. symphycarpa\n7^2x\.,Q>i 
can authors, not Fries.) 
“ cenotea (Ach.) Schaer. 
“ coccifera (L.) Willd. {Cl. corriucopioides (L.) Fr.) 
“ “ var. ochrocarpia Flke. 
“ “ “ pleurota (Flke.) Schaer. 
