542 FLORA ANTAECTICA. \Fuegia, etc. 



{Lichenes imperfecti.) 



23. ISIDIUM, Ac//. 



1. Isidium oculatum, Ach.; Lich. Univ. p. 570. Engl. Bot. t. 1833. 



Hab. Hermite Island, Cape Horn, the Falkland Islands and Kerguelen's Land ; on the earth. 



Various Parmelim and Lecanora in a young state, are scarcely distinguishable from one another, and have been 

 referred to Isidium oculatum. 



2. Isidium lutescens, Turn, and Borr. Lepraria lutescens, Engl. Bot. t. 1529. 

 Hab. Kerguelen's Land ; on rocks near the sea. 



Very probably a state of Lecanora murorum. 



24. LEPRAEIA, Ach. 



1. Lepraria fiava, Ach.; Inch. Univ. p. 663. Engl. Bot. t. 1350. 



Hab. Hermite Island, Cape Horn, the Falkland Islands and Kerguelen's Land; abundant near the sea. 



Evidently the powdery state of some Parmelia, belonging to the citrinous series. 



