CHRISTENSEN: ARCTIC PTERIDOPHYTA 69 
6. Polystichum lonchitis (L.) Roth. W. Greenland, 
li 1: E. Greenland, 65°. 
7. Dryopteris filix mas (L.) Schott. 8. Greenland, 60- 
s. D. fragrans (L.) Schott. All around the arctic 
coasts and islands, extending to 79° (Hayes Sound). D. 
aquilonaris Maxon, from Nome City, is a forma erosa of 
sa species. 
. D. spinulosa dilatata (Hofim.) Und. Kotzebue 
aes W. Greenland, 69° 1 
10. D. phegopteris (L.) C. Chr. W. Greenland, adh 
ska. 
11. D. Linneana C. Chr. W. Grodnlanl, oe iy. 3 
12. Athyrium alpestre (Hoppe) By 8. Greenland, oe. 
61’. : 
13. capicceiettenes viride Huds. — w. Greenland, 62°; E. 
| oe e 
4. Botrychium lunaria Go Sw. W. and E. Green- 
aca 70°. . 
15. B. boreale Milde. . 8. ‘Gicesiand: 61°. . 
16. B. lanceolatum Angstr. W. Greenland, 63° es 
17. B. simplex Hitch. W. Greenland, 60° 5°; sing a 
plant found. oS 
18. Soe keels ie Ww. Greenland, 60° 53’. 
19. E. variegatum Schleich. Scattered over the a i 
pelago north of America, extending to. a 50’ (G Grinnell io ay 
_ eastwards to Spitzbergen; -Chukehes: Land. — oe 
20. E. scirpoides Michx. Kotzebue Sound; Mw, jreen PS 
ind. 70°; Spitzbergen; the arctic regions of ‘the 
- World, ‘reaching its: farthest = oe | No 
Zemlya. eS 
