6 ARKIV FOR BOTANIK. BAND 10. w:o 2. 
28. 8. 1908. A new locality for the species. The specimens 
collected are large (lamina 30X10 cm.) and agree exactly 
with MinpE's description of the variety, which is found in 
America from Chile along the Andes to Mexico. 
Blechnum. 
The southern temperate zone is especially rich in species 
of this genus, and several occur also in South America, 
where they vary considerably. By determining species of 
Blechnum we lack unfortunately a monograph of the genus, 
as the treatment in Syn. Fil. is very unsatisfactory, because 
the authors put together in a single species forms from the 
most remote regions. Such »species» as Lomaria attenuata, 
L. capensis and L. tabularis of Syn. Fil. are good examples 
of this kind of treatment. It would be to desire that a pte- 
ridologist should take up the genus for monographic study. 
Blechnum penna marina (Poir.) Kunn. 
I can distinguish three forms of this well-known species, 
the type of which is unknown to me. 
1. A small reduced form: sterile leaf 5—7 cm. long, inclu- 
ding the dark-brown stipe, which is shorter than the 
lamina, 2—3 cm. long. Lamina downwards abruptly 
narrowed or shortly attenuated; lower segments rarely 
free. Costa greenish or even stramineous. 
Syn. Lomaria polypodioides Desv.; Gaudichaud, 
Ann. sci. nat. 5: 98. 1825. 
Falkland Islands: Port Stanley, SKOTTSBERG, 
n:r. A. 54, 31. 12. 1901 — nr. 133, 6. 2. 1908. 
2. Like the former, but larger: sterile leaf 15 cm., stipe 
3—4 cm. 
Syn. Lomaria australis Kze. Linnaea 9: 57. 1834. 
L. alpina Hk. fil. Fl. antarct. 2: 392 tab. 150 (exactly 
this form). LZ. Gayana Fée; Gay, Fl. chil. 6: 481. 
Patagonia occ. Territ. S:ta Cruz, Lago Argentino 
in fageto, P. DusÉN n:r 5697, 25. 1. 1905 — J. Hóc- 
BERG, 4. 4. 1901. 
