Species

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Total: 336

species valid

Taeniopteris lundgrenii Nath. Kongl. Svenska Vetensk. Acad. Handl., 30(1): 50. 24 Sep 1897

species valid

Sphenopteris maakiana (Heer) Nath. in Nansen Sci. Res. Norw. N. Polar Exp. 1893-1896, 1(Art. 3): 8. 1900

species valid

Archaeopteris fimbriata Nath. Bull. Geol. Inst. Univ. Upsala, 4(2 [8]): 154. Oct 1900

species unavailable

Pityospermum maakianum (Heer) Nath. in Nansen Sci. Res. Norw. N. Polar Exp. 1893-1896, 1(Art. 3): 17. 1900

species valid

Sphenopteris murrayana (Brongn.) Nath. in Nansen Sci. Res. Norw. N. Polar Exp. 1893-1896, 1(Art. 3): 8. 1900

species unavailable

Pityophyllum lindstroemii (Nath.) Nath. in Nansen Sci. Res. Norw. N. Polar Exp. 1893-1896, 1(Art. 3): 20. 1900

species unavailable

Pityospermum cuneatum (Nath.) Nath. in Nansen Sci. Res. Norw. N. Polar Exp. 1893-1896, 1(Art. 3): 18. 1900

species unavailable

Pityophyllum staratschinii (Heer) Nath. in Nansen Sci. Res. Norw. N. Polar Exp. 1893-1896, 1(Art. 3): 19. 1900

species unavailable

Pityospermum nansenii Nath. in Nansen Sci. Res. Norw. N. Polar Exp. 1893-1896, 1(Art. 3): 18. 1900

species valid

Ginkgo polaris Nath. in Nansen Sci. Res. Norw. N. Polar Exp. 1893-1896, 1(Art. 3): 11. 1900

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