A P P E ]\ D I X. 



Sectio I. CRUSTACEI. Thallus crustaceus. 



Genus XXXIV. LEPRA(Hall. hist.lll. p. 102). Thallus 

 leproso-pHlverulentus , organa peculiaria nulla offerens. 

 Spic. 1. 208. Lepraria Ach ! Turn & Borr ! Tab. 

 nostr. 9. f. 4. 



1. Lepra alba (Sm. EB. t. 1349. Turn. & Borr. 

 Lichgr. brit. 15). Thallus niveus , leprosus , crassus, 

 tandem gleboso-areolatus. — Ad arborum corlices Brittanni» 

 Borr! Sahv ! — Lecanorae pallescentis crusta 

 steriiis? 



2. Lepra incana (Lich. incanus Hoffm. enum. 7. 

 t. 1. f, 6). Thallus albus , leprosus , granulis incanis, 

 majusculis, discretis undique conspersus. Spic. 210. — Ad 

 cortices arborum et muscos in sylvis campestribus. 



3. Lepra farinosa (Ach. univ. 66G). Thallus 

 albus, leprosus, granulis incanis, minutis, in crustam cras- 

 sam rimosamque congestis conspersus. — Spic. 211. — Ad 

 arborum truncos Schl ! 



4. Lepra sulphurea Ehrh ! crypt. 208). Thallus 

 albus , leprosus , granulis sulphureis vel ochraceo-Iutescen- 

 tibus, niinulis, in crustamrimoso-pulvinatam congestis consper- 

 sus. Spic. 211. Exs. 235. Lepra ochracea Turn. & 

 Borr. Lichgr. brit. 8. EB. t. 2408. — Ad Abietum truncos 

 in sylvis campestrih. per omn. Europ. 



