16 ARKIV FOR BOTANIK. BAND 10. w:o 2. 
Stipitibus subfasciculatis, !/» em. remotis, tenuibus, ad 1 
cm. longis, pilis longis patentibus tortuosis villosis. Lamina 
spathulata, apice obtusa, in stipitem longe et gradatim decur- 
rente, 4—5 cm. longa, supra medium 5—8 mm. lata, margi- 
nibus integris vel undulato-repandis vel crenatis, coriacea, 
versus basin pilis longis deciduis ciliata, paginis — costa 
subtus pilis paucis instructa excepta — glaberrima. Costa 
venisque immersis, obscuris; venis furcatis erectis, ramis 
aequilongis, intra marginem desinentibus. Soris numerosis 
oblongis, ca. 2 mm. longis, obliquis, costae plus quam mar- 
gini approximatis. Sporangiis pilis longis rufis numerosis in- 
termixtis; annulo 14-articulato.  Sporis rotundis, magnis, 
tenuiter verrucosis. 
Patagonia occ.: Aysén Vallev, leg. P. DusÉN 19. 1. 
1897. (Type in Naturhist. Riksmuseum, Stockholm). 
This new species can at once be distinguished from P. 
Billardierii or its varieties by the very Jong, reddish, flexuose 
hairs of the sori. From var. magellanicum it further differs 
by its distinct, villous stipe. Smaller but apparently constant 
differences I find in the structure of the scales and sporangia. 
The seales of the rhizome are few and brown in P. patago- 
nicum, numerous and light-yellow in P. Billardieri? and its 
forms. Also the cells are larger in the former species. In 
two scales of exactly the same size I counted in the middle 
of the scale 14 rows of cells in P. patagonicum but 30 in P. 
Billardierii. In P. patagonicum the annulus of the sporangia 
is very constantly 14-articulate, in P. Billardierii with varr. 
nearly always ll-articulate. — Finally the rhizome is more 
distinctly creeping in our new species than in P. Billardierit, 
and its spores are much larger. 
Polystichum. 
Although Dr. Curist! has dealt with the species of 
Polystichum from temperate South America, I shall here 
mention the species examined by me in some detail, mainly 
because Dr. CHRIST seems to have misunderstood the types 
of certain species. 
! Ueber die australen Polystichum-Arten. Arkiv fór Botanik. Band 
4. N:o 12. 1905. 
