The Botany of Iceland - 01.12.1942, Blaðsíða 191

THE PTERIDOPHYTA AND SPERMATOPHYTA OF ICELAND
189
139. Juncus bulbosus L., Sp. pl. ed. I (1753) p. 327.
Mohr, 1786, p. 172.—J. suþinus Moench, Babington, 1871, p. 332.—Gron-
lund, Isl. Fl., 1881, p. 101.—J. bulbosus L., Stefánsson, Fl. ísl., ed. 1, 1901,
p. 24.—J. suþinus Moench, Ibid., ed. 2, 1924, p. 27.—J. bulbosus L., C.H.O.,
Fl. arct., 1902, p. 24.—J. suþinus Moench, O. & Gr., 1934, p. 44.
Flora Dan. tab. 1099 and tab. 817.
Icelandic: Knollsef. Danish : Liden Siv. English: Lesser Jointed Rush.
The two forms: f. fluitans Lge. and f. þygmaeus Moench occur in Iceland.
Frequent only in the southwestern parts of Iceland, otherwise it is very rare; in
the central highland it is found by the warm springs at Hveravellir (J.Gr., 1934).
See fig. 70.
Life-form: H.
In moist places; in ditches and shallow lakes; near hot springs.
Flor. VII_vin; fr. mat. VIII (—IX).
Max. height: 26 cm ; average: 11 cm.
Geogr. area: Eur.: Fær.; E.S.I. ; northwestern and central Europe, not in the arctic
zone. Caucasus.—North Afr.; Azores, Madeira.
140. Juncus castaneus Smith, Fl. Brit. I, ed. 1 (1800) p. 383.
Babington, 1871, p. 332.—Gronlund, Isl. Fl., 1881, p. 102.—Stefánsson, FI.
ísl., ed. 1, 1901, p. 23.—Ibid., ed. 2, 1924, p. 26,—C.H.O., Fl. arct., 1902,
p. 24,—O. & Gr., 1934, p. 43.
Flora Dan. tab. 1332.
Icelandic. Dökkasef. Danish: Kastaniebrun Siv. English: Chestnut Rush.