DUSEN : PATAGONIAN AND FUEGIAN MOSSES. 65 



which has been already accentuated by C. Muller (Hal.), viz: that several 

 genera which, as a rule, are confined to tropical and subtropical regions, 

 are represented here by not a few species. Hypopterygium, for instance, 

 displays three species, Pilotrichella two, Cryphcea, Dendrocryphaa, Dal- 

 tonia and Hookeria one each, and Pterygophyllum, Mniadelphus and 

 Macromitrium several species. Of Hatcher's mosses only two represent 

 tropical types, Macromitrium bifascicnlare n. sp. and Macromitrium tenax 

 C. Mull. These tropical representatives are almost exclusively to be 

 found in the most westerly part of our district. They follow the coast 

 and reach comparatively high latitudes ; a few even extend to Cape Horn. 

 The explanation of this, I think, is to seek in the mild climate of the 

 western coast region. 



The occurrence of tropical types within our district, as is well known, is 

 not limited to the mosses exclusively, but also includes the phanerogamic 

 plants. The affinity spoken of above between the moss-vegetation of our 

 territory and that of Kerguelen Island, New Zealand and Australia is not 

 an exceptional feature, but also prevails among the phanerogamic flora of 

 the several districts, even though it is less marked there than in the mosses. 



SPHAGNALES. 



Fam. SPHAGNACE^E. 

 Gen. SPHAGNUM Dill. 



SPHAGNUM FIMBRIATUM Wils. var. ROBUSTUM Braithw. 

 Hab. Patagonia australis. 



SPHAGNUM MEDIUM Limpr. var. FUSCO-RUBELLUM Warnst. 



f. BRACHYDASYCLADA Wamst. 



Hab. Patagonia australis. 



BRYALES. 



ACROCARPINE^E. 



Fam. DlCRANACEyE. 

 Subfam. DICRANELLE^E. 

 Gen. ANISOTHECIUM Mitt. 



