224 KEY. J. M. CROMBIE ON THE LldlKXS 



Stereocaulon tomentosum, Fr. 



On the ground. Punta Arenas (Sandy Point). 



Apparently common and fertile. 



S. t., var. magellanicum, Fr. 



On earth-covered rocks. Fox Bay (West Falkland Islands) 



Sterile. 



Tribe Cladoniei. 



Cladonia fimbriata, Hffm. 



Amongst mosses on the ground. Oazy Harbour (Strait of Magellan). 



Sparingly and infertile. 



F. COSTATA, Flk. 



On the ground. Port Gallant. 



Sterile. 



Cladonia gracilis, f. tripoda, Cromh., est similis f. hybrids, 

 sed podetiis (altit. 2-4-pollicaris) vulgo tenuioribus (fertilibus autein 

 crassioribus) et ter proliferis. Apothecia mediocria vel majuscula. 

 On the ground. Island Harbour (west coast of Patagonia). 



Sparingly fertile. 



C. CARNEOLA, Fr. 



Amongst mosses on the ground. Sandy Point. 



Very sparingly and infertile. 



Cladonia furcata, f. grandescens, Nyl. " Comparanda cum f. 



corymbosa, sed major (altit. circiter 1-2 centimetrorum, crassit. 



podetiorum 1-2 millimetrorum), colore facile fuscescente (vel pro 



parte castaneo-fusco)." — Nyl. in litt. Thallus K 

 On the ground. Island Harbour. 



Sparingly, and rarely fertile. 



C. racemosa {Hffm.). 



Amongst mosses on the ground. Island Harbour. 



Only a single small and sterile specimen seen. 



C. Lamarkii (Del.), NyL 



On the ground amongst mosses. Port Famine (Strait of Magellan). 



A small, sterile, and otherwise not very characteristic specimen. 

 C. squamosa, Hffm. 



On the ground. Sandy Point. 



Not uncommon, but infertile. 



■ 



C. subsquamosa, f. nudior, Nyl. Podetia saltern pro maxima parte 



subnuda. 

 On the ground. Port Otway. 



Very sparingly and sterile. 



