The Botany of Iceland - 01.12.1942, Page 103

THE PTERIDOPHYTA AND SPERMATOPHYTA OF ICELAND
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than is evident from the records; it is certainly easily overlooked, when growing in
company with B. Lunaria, as it usually occurs much more sparingly.
Life-form : H.
On grassy ground, on móland at a higher level.
Max. height: 9 cm; average: 7 cm.
Geogr. area: Am.: Northern N. Am., Nova Scotia to Alaska, southward to Wash.
and Colorado.—Greenl.: W. 60°—63° ; E.: 60°—68°33’.—Eur. : Scandinavia, Fin-
land, northern Russia. Alps.—Asia: Siberia, Sakhalin, Kuriles, Kamchatka.
17. Botrychium Lunaria (L.) Sw., Schrad. Joum. Bot. II (1800)
p. 110.
Osmunda Lunaria, K. & M., 1770, p. 211.—B. Lunaria Sw., Babington, 1871,
p. 348.—Gronlund, Isl. Fl., 1881, p. 143.—Stefánsson, Fl. ísl. ed. 1, 1901,
p. 2.—Ibid. ed. 2, 1924, p. 2.—C.H.O., Fl. arct., 1902, p. 2.—O. & Gr.,
1934, p. 5.
Flora Dan. tab. 18 (left figure).
Icelandic: Tungljurt. Danish: Almindelig Maanerude. English: Moon-Wort,
Moon-Fern.
Besides the main form there occurs in Icel. also the var. subincisum Roeper, the
leaf-sections of which have only shallow indentations in the outer margin; the var.
fasciculatum Christ, with 2—3 sterile or fertile leaf-segments from the parting point,
is also found here (perhaps only a monstrosity).
It seems to be a common species throughout Icel. In the lowland as well as in
the central highland. It was thus very frequent in the parts around Hvítárvatn as
well as at Hveravellir (1934, J.Gr.) ; it seems to thrive well here (at about 400—