Glyphis and Chiodecton. 43 



ExpUc. Icon. Tab. III. fig. 1. — a. Lichen in cortice Cascarillee, 

 niagn. naturali. — b. Crustae frustum cum verrucis quibusdam, 

 niagn. aucta. — c. Verruca solitaria, supra visa, insigniter aucta. 

 — d. Sectio horizontalis verrucse, substantiam ejus et apotlieci- 

 orum inclusorum intcrnani ostendens, magn. valde aucta. — e. Ver- 

 ruca cum parte subjacentecorticisad perpendiculum dissecta sub 

 augmento adiiuc raajori. 



CHIODECTON. 



Character Generis Essentialis. 

 Receptaculum universale crustaceo-cartilagineuni plano-expan- 

 sum adnatum uniforme. Partiale verriicaeforme e propria 

 substantia colorata (alba) formatum. Apothecia sub- 

 pulveracea subglobosa (atra), plura singulis verrucis in- 

 clusa subconfluentia, alia ad earum superficiem instar 

 punctorum elev^toruni notabilia. 



Character Naturalis. 



Receptaculum universale. T/iaZ/ws cartilagineo-membrana- 

 ceus, contiguus uniformis plano-adnatus, efFusus 1. limita- 

 tus. 



Receptaculum partiale. Verruca convexa 1. sphaerica, co- 

 lore (albo) et substantia propria a thallo diversa, apothecia 

 includens. Apothecia numerosa subglobosa, plurima intra 

 substantiam verrucae propriee nidulantia aggregata et con- 

 fluentia, alia pauciora ad ejus superficiem in modum papil- 

 larum punctiformium subprominentia, intus extusque sub- 

 pulveracea atra. 



G 2 Obs. 



