CONSPECTUS OF THE GENERA OP BRITISH LICHENS. 
77 
Series I. 
Epiconiodei, 
Series IL 
Cladonei. 
Series III. 
Ramalodei. 
Series IV. 
Phyllodei. 
Series V. ^ 
Placodei. 
Family III. — Lichenacei. 
r 
< Tribe I. Caliciei... 
^ Tribe II. Spbaeropborei 
r Tribe III. Egbomycetei 
I Tribe lY. Pilophorei 
j Tribe Y. Stereocaulei . . . 
Tribe YI. Cladoniei 
f Tribe YII. Roccellei ... 
Tribe YIII. Siphalei ... 
I Tribe IX. Usneei 
Tribe X. Alectoriei 
Tribe XI. Eamalinei ... 
L Tribe XII. Cetrariei ... 
Tribe XIII. Parmeliei ... 
Tribe XI Y. Stictei 
Tribe XY. Peltigerei ... 
Tribe XYI. Pbysciei 
Tribe XYII. Gyrophorei 
Tribe XYIII. Lecanorei 
Tribe XIX. Pertusariei 
Tribe XX. Tbelotremei 
Tribe XXI. Lecideei 
Tribe XXII. Grapbidei 
Sphinctrina, Fr. 
Calicium, Ach. 
Stenocybe, Xyl. 
Coniocybe, Acb„ Nyl. 
Tracbylia, Fr. 
Spha3ropboron, Pers. 
C Gompbillus, Xyl. 
C Baeomyces, Pers. 
Pilopboron, Tuck. 
Stereocaulon, Scbreb. 
r Pycnotbelia, Acb. Duf. 
... ^ Cladonia, Hffm. Xyl. 
(Cladina, Xyl. 
... Roccella, DC. 
... Tbamnolia, Acb. 
... Usnea, Hffm. 
Alectoria, Acb. Xyl. 
. . . Eamalina, Acb. Fr. 
fCetraria, Acb. Xyl. 
"■ (.Platysma, Hffm. Xyl. 
r Evernia, Acb. Xyl. 
... < Parmelia, Acb., Xyl. 
(. Parmeliopsis, Xyl. 
r Stictina, Xyl. 
... < Sticta, Acb,, Xyl. 
(.Ricasolia, Dn. 
^ Xepbromium, Xyl. 
\ Peltidea, Acb., Xyl. 
■■■ i Peltigera, Hffm., Xyl. 
C Solorina, Acb. 
Pbyscia, Xyl. 
C Umbilicaria, Hffm. 
■ ■ ■ ( Gyropbora, Acb. 
I Pannaria, Del. 
j Coccocarpia, Pers. 
j Ampbiloma, Fr., Xyl. 
[ Dirina, Fr. 
( Pertusaria, DC. 
■"1 Pblyctis, Wallr. 
) Tbelotrema, Acb. 
I Urceolaria, Acb., Xyl. 
f Lecidea, Acb., Xyl. 
..."=! Odontotrema, Xyl. 
l_(Scbizoxylon, Pers.) 
pXylograpba, Fr., Xyl. 
(^Ptycbograpba, Xyl.) 
Agyrium, Fr., Xyl, 
Litbograpba, Xyl. 
Opegrapba, Acb., Xyl. 
Platygrapba, Acb., Xyl. 
I Stigmatidium, Mey. 
Artbonia, Acb. 
j Grapbis, Acb. 
I Cbiodecton, Acb. 
I Glypbis, Acb. 
bMelaspilea, Xyl, 
