222 BEY. J. M. CROMBIE ON LICHENS COLLECTED 



2. ClADOKIA riMBRIATA, f. COSTATA, FlJc. 



On the ground : very sparingly fertile. 



3. Nettropogon melaxanthus (Ach.). 



On rocks: barren. 



4. Peltigera poltdacttla, f. hymenina {Ach.). 



Amongst mosses on tbe ground: fertile. 



5. C(EN0G0KIUM CONEERYOIDES, Nyl. 



Amongst mosses, &c. : sterile. 



Inaccessible Island. 



1. Eamalina Temenensis, AcTi. 

 On branches of trees : fertile. 



2. E. INTERMEDIA {Del.). 



On the branches of trees : barren. 



I 



\ 



\ 



3. Pabmelia perforata, Ach. 



On trees : sterile, fragmentary and uncertain. 





mi 



Husn, p. 11. 



On the bark of trees; apparently common. 



Island of Tristan d'Acunha. 



1. StEREOCAULON MIXTUM, iVyZ. 



On the ground : sterile. 



2. Stictina intricata, f TnouARSii (DeL). 

 On trees : with young apothecia. 



3. Parmelia perforata, Ach. 

 On trees : infertile. 



4. P,PERLATA(i.). 



On trees : barren, also a sorediate state. 



■t 



5. P. reyolijTELLa, -%Z., sp. n. " Est quasi P. revoluta^ Flk., 

 minor, thallo albido imbricato-laciniato (laciniis latit. 1-2 milli- 

 metrorum, subtus nigris, passim rhizlnis concoloribus sparsis par- 

 cisque) ; medulla CaCl +• Apothecia non visa. Spermatia bifu- 

 siformia, longit. 0'004-0-006 millim., crassit. O'OOOS millim- 

 Nyh in lift. 



On trees ? very sparingly seen. 



6. Lecanora (Placopsis) gelida (X.). 

 On rock : probably frequent. 



7. L. AcuNHANA, iVyZ., sp. n, '* Thallus albidus tenuis rugulost 



c- 



