ARKIV FÓR BOTANIK. 
BAND 10. N:o 2. 
On some species of ferns 
collected by Dr. Carl Skottsberg in Temperate 
South America. 
By 
CARL CHRISTENSEN. 
With 1 plate and 4 textfigures. 
Communicated April 27th 1910 by A. G. NATHORST and G. LAGERHEIM. 
From Dr. CARL SKOTTSBERG I have received for determi- 
nation a rather comprehensive collection of Pteridophyta, 
which were collected by him during his travels in the tempe- 
rate South America in 1907—1909. The collection contains 
specimens from 1) Falkland Islands, 2) Tierra del Fuego, 3) 
West and East Patagonia, 4) Chiloé and 5) Juan Fernan- 
dez (Masatierra and Masafuera). In all 67 species were collec- 
ted, thus almost the whole number of species recorded from 
these distant regions. 
As a whole, the Pteridophyta of temperate South America 
are well known, and the determination of the different 
species is not difficult, if one would be satisfied in naming 
them in accordance with the greater part of the authors, 
who previously have dealt with the ferns from these regions. 
Several of these authors (f. inst. HEMsLEY and JoHow) 
uncritically followed Hooker and Bakgnm's Synopsis Filicum, 
not only in nomenclature but also in considering a large 
number:of really valid species belonging to the all-embracing 
collective species of Syn. Fil. distributed over wide parts of 
the globe; others, especially PuiriPPr have described a long 
Arkiv für botanik. Band 10. N:o 2 1 
