Clavis generum. 
a 
x 
Sn 
nudus, junior thallo difformiter sumpendo obtectus ‘ ‘ . " » 
— thallo ostiolato (rimato) persistenter obtectus „x. + » 
perithecio laterali plano sub margine thallode latente circumdatus, 
junior membranula albido-pulverulenta velatus . . . « 
— lalerali superoque ostiolato (rimato) prominente marginatus 
— inlegro osliolo poriformi (rimaeformi) . ; - ce.» 
— — 
— juniore integro, demum adaperto, margine proprio inaequali 
— infero a thallo non märginato 
Nucleus 
a ihallo ellevato - marginatam, apotheciis sparsis patelliformibus , 
elongato (longitudinaliter exacuato) : : . 
—  infero lateralique cupulari immerso a thallo marginato . 
oe 1 Tr Tr Te 
Cum peritlecio in laminam. discoideam confluens, in ambitu liberam 
marginalibus obliquis 
terminalibus peltatis. . 
Stratum medullare 
‘ eellulosum | 
N N 
filamentosum. 
apothecia sparsa, 
Pa Nu u \ 
elongata. 
ey NV vv 
Graphideae. 
(Variolaria sublinearis,) 
Diorygma, 
Leiorreuma, 
Graphis Ach. 
| Opegrapha Ach. pro p. 
Oxystoma, «+ 
Scaphis, ' 
Lecanactis. 
Sclerophyton. 
Pyrochroa, 
FE Er GE 
rotunda. 
:Werrucariae, 
Variolaria Ach, - 
'} Porina Ach, 
1 
-Thelotrema Ach. em, 
Verrecaria Ach. em, 
Pyrenula Ach. 
Pyrenastrum, 
Limboria Ach. em; 
| Urceolaria Ach: 
Lecidea Ach. pro. p. 
Biatora Fr. 
nen 
Lecanora Ach; 
N 
in verrucis et strato me- 
dullari aggregata 
[au N um 
formae variae, 
> 
TITELS RL RS RN TE 
Trypetheliaceae, 
Arihonia Ach. em. 
Porothelium. 
Medusula, 
Ophthalmidium. 
Trypethelium Spr. Ach, 
Astrothelium, 
Glyphis Ach: 
Chiodecton Ach. 
Conioloma Fl. 
Parmeliaceae 
I nn WEHREN 4 
strato corticali supero. 
Dermatocarpeae 
Solorina Ach, 
Dermatocarpon 
(Endocarp, Ach,). 
Gyrophora Ach: 
Endocarpon Hedw.! 
Capitularia Fl. Mart, 
Peltidea Ach. 
_.N_ 
Collema Hoffm. 
Coxnicularia Ach. 
Parmelia Ach. 
Stieta Ach. Spr. 
Hagenia. 
strato corticali undique 
obducto, 
RETURN 
Plocariae 
Isidium Ach, 
Plocaria N. ab E. 
Sphaerophoron Ach. 
Roccella Ach, 
Stereocaulan Ach. 
Dufourea Ach. N. ab BE. 
Usneaceas. 
u 
Evernia Ach, em. (cum. 
Ramalina et Alectori& 
Ach.) 
Cetraria Ach. _ 
Usnea Hoffm, . 
