10 PATAGONIAN EXPEDITIONS: BOTANY. 



especially the Hepatica, which still appear in considerable masses. Phan- 

 erogamic plants, on the other hand, are few and far between. I have 

 already mentioned that some of the coast species ascend to the fells, such 

 as Lagenophora nudicaulis (Comm.), Perezia magellamca (Linn, fil.) Lag., 

 Senecio bifurcatus Less., and S. acanthifofais Hombr. et Jacq., Marsipo- 

 spermum grandiflorum (Linn, fil.) Hook., Caltha dionecefolia Hook., and 

 Phyllachne uliginosa Forst, the last two named of these extending nearly 

 as high as the snow-line. Species found only on the fells are : Viola 

 tridentata Menz., Geitm magellanicum Comm., Accena antarctica Hook. 

 fil., Ourisia breviflora Benth. and O. nana Benth., Saxifraga bicuspidata 

 Hook. fil. and S. alboffiana Kurtz., Luzitla antarctica Hook, fil., Uncinia 

 kingii Booth., and Stipa rariflora (Hook, fil.) Benth. 



Of the numerous Hepaticce I must not omit to mention Anastrophyl- 

 Imn invohttifolium (Mont.), Isotachis anceps Mass., Jamesoniella grandi- 

 flora L. et A., Dip lop hy limn clandestinum Hook., Lepicolea quadrilaciniata 

 Sull. ; species of Lophocolea, Leioscyphus abnormis Mass., L. surrepens 

 Tayl., and L. turgescens Tayl., Lepidolwna hariotiana Mass., Marsupella 

 kerguelensis Schffn., Schistochila splachnophylla^-xyl., and S. flac/iy/aTay\., 

 S. planifolia Steph. and S. gayana Gottsche. Musci are comparatively 

 scarce and many of them belong to genera which are represented also in the 

 Arctic and Subarctic zones of the northern hemisphere, such as Andrecea, 

 Conostomum, Psilopilum, Blindia, Rhacomitriuin and Dtckodontium. 



2. THE VEGETATION OF THE NORTHERNMOST PARTS OF WESTERN 



PATAGONIA. 



Many of the phanerogamic plants enumerated above as belonging to 

 the southern section of our district are spread over the whole of western 

 Patagonia, including the Guaitecas Islands, of whose plants I shall now 

 give an account. But the flora of those islands I here refer to the 

 phanerogamic vegetation only is chiefly composed of elements that are 

 wanting in the south, this difference of species being the only one that 

 can be shown to exist between the outlying parts of our district north and 

 south, as biologically and physiologically, hardly any can be discerned. 



Nothofagus betuloides (Mirb.) Blume, so common and characteristic of 

 the southern portion of western Patagonia, is almost entirely missing in 

 these islands. Here it is replaced by two other species of evergreen 

 beeches, Notkofagus dombeyi (Mirb.) Blume and N. nitida (Phil.), both of 



