The Botany of Iceland - 01.12.1942, Síða 187

THE PTERIDOPHYTA AND SPERMATOPHYTA OF ICELAND
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Not so common as S. þalustris but found in the coastal region in most parts.
In N., W. and S.W. it may be fairly common. See fig. 67. Often forming nearly
pure formations in the strand meadows.
Life-form: G. (Rhizome Geophyte).
On moist clayey or sandy soil, especially near the sea; strand meadows, etc.
Flor. VI—VII; fr. mat. VII—VIII.
Max. height: 37 cm; average: 15 cm.
Fig. 67. Scirþus uniglumis Link.
Geogr. area: N. Am.: Quebec, St. Lawrence district.—Greenl.: W. 61°—61°13'.—
Eur.: Fær.; E.S.I.; Scandinavia; sea shores of Eur.—Asia: Siberia, S.W. Asia.
Juncaceae.
134. Juncus arcticus Willd., Sp. pl. II (1799) p. 206.
Hooker, in Mackenzie, 1811, p. 420.—Gronlund, Isl. Fl., 1881, p. 100/—Ste-
fánsson, Fl. ísl., ed. 1, 1901, p. 23,—Ibid., ed. 2, 1924, p. 25,—C.H.O., Fl.
arct., 1902, p. 24,—O. & Gr., 1934, p. 42.
Flor. Dan. tab. 1095.
Icelandic: Tryppanál. Danish: Nordisk Siv.
For the first time recorded by W. J. Hooker, loc. cit., but the records of
J. arcticus previous to Gronlund’s cited above, seem to be due to errors in the
determination of J. balticus, which is a common plant in Iceland. It was Gronlund
who with certainty first found J. arcticus at Kalmannstunga 1876.
It is not so common by far as J. balticus in Iceland, and it seems to be more
restncted to inland localities. It must, however, evidently be more frequent than
t e records indicate, as it has undoubtedly been taken for J. balticus in some places.
Not recorded from S. and S.W. See fig. 68.