I 



COLLECTED IN THE FALKLAND ISLANDS ETC. 223 





Family COLLEMACEI. 



Tribe Collemet. 

 Leptogium (Stephanophoron) phyllocarpum (Flic.) 



On trees. Ancud (Chiloe). 



Very sparingly and infertile. 



Family LICHENACEI. 



Tribe Sph^bophorei. 

 Sph^erophoron compressum (Sw.). 



On decayed trunks. Halt Bay, Port Grappler, Eden Harbour (west 

 coast of Patagonia). 



Fertile and apparently common. 



S. australe, Laur. 



On decayed trunks, Huite (Chiloe), Port Otway (Cape Tres Montes). 



Somewhat variable, but for the most part readily distinguish- 

 able from states of the preceding. 



S. tenerum, Laur. 



On decayed trunks. Halt Bay, Port Otway, Otter Islands (west coast 

 of Patagonia), Port Gallant (Strait of Magellan). 



Rather variable in the slenderness of the primary branches. 



S. t., f. compactum, Crornb. Thallus minor, ramis omnibus brevissi- 

 mis gracillimis densissime intricatis; apotheciis minoribus vel fere 

 minutis. 



On decayed trunks. Port Gallant (fertile) ; Otter Islands (sterile). 



In the specimens from the former, the thallus is tinged of a 

 somewhat rusty red colour, while in those from the latter locality 

 it is of a pure ivory white. 



Sph^rophoron coralloides, Pers. 



On the trunks of old trees. Punta Arenas (Strait of Magellan). 



Apparently common, but infertile. 



Tribe Stereocaulei. 



Stereocaulon ramulosum (Ach., NyL). 



On maritime rocks. Ancud (Chiloe) ; Eden Harbour, Island Harbour 



(W. coast of Patagonia). 



Apparently abundant, and very variable in size. 



S. r., var. macrocarpum (Rich.). 

 On maritime rocks. Island Harbour. 



Sparingly gathered. 



UNN. JOURN. — BOTANY, TOL. XV. ■ 



