The Botany of Iceland - 01.12.1942, Síða 134

132
JOHS. GRONTVED
55. Alopecurus geniculatus Linn., Sp. pl. ed. I (1753) p. 60.
K. & M., 1770, p. 204.—Babington, 1871, p. 341.—Gronlund, Isl. Fl., 1881,
p. 123.—Stefánsson, Fl. ísl., ed. 1, 1901, p. 49.—Ibid., ed. 2, 1924, p. 56.—
O. & Gr., 1934, p. 20.
Flora Dan. tab. 861.
Icelandic: Knjáliðagras. Danish : Knæbojet Rævehale. English: Black Grass, Elbowit
Grass.
Nearly exclusively limited to the cultivated areas in the lowland ; perhaps in-
troduced in comparatively recent times. In some places it may have some value as
forming part of the meadow-hay.
Life-form: H.
In moist places, wet meadows and ditches; sometimes floating in water; sometimes
abundant in manured home-fields.
Flor. VI—VIII; fr. mat. VII—VIII.
Max. length of shoots: 65 cm ; average : 23 cm.
Geogr. area: Am.: Newfoundland to Br. Columbia and throughout U.S.A.—-Greenl.:
W. Southern parts, introduced.—Eur.: Fær.; E.S.I.; throughout most of Europe;
Caucasus.—Asia : Temperate parts.—Australia, New Zealand, Tasmania.
Alopecurus þratensis Linn., Sp. pl. ed. I (1753) p. 59.
Babington, 1871, p. 341.—Stefánsson, Fl. fsl., ed. 1, 1901, p. 49.—Ibid., ed. 2,
1924, p. 57.—C.H.O., Fl. arct., 1902, p. 99.—O. & Gr., 1934, p. 19.
Icelandic: Háliðagras. Danish : Eng-Rævehale. English: Meadow Foxtail.
In meadows and fields, cultivated, and as an escape from cultivation. Seems in
some degree to have become naturalized in Iceland.
56. Anthoxanthum odoratum Linn., Sp. pl. ed. I (1753) p. 28.
K. & M., 1770, p. 204.—Babington, 1871, p. 340,-—Gronlund, Isl. FL, 1881,
p. 122.—Stefánsson, Fl. ísl., ed. 1, 1901, p. 48.—Ibid., ed. 2, 1924, p. 55.—
C.H.O., Fl. arct., 1902, p. 96.—O. & Gr., 1934, p. 19.
Flora Dan. tab. 666.
Icelandic: Reyr, Ilmreyr. Danish : Vellugtende Gulaks. English : Sweet Vernal-grass.
Common in all parts, in the central highland also.
Life-form : H.
In dry grassy places, on grassy slopes, grass-heath, in copses, melar; home-fields.
Flor. V—VII; fr. mat. VII—VIII.
Max. height: 47 cm ; average: 20 cm.
Geogr. area: Am.: St. Lawrence region (introduced and naturalized).—Greenl.:
W. 60°43'—61°15'. E. 60°30'—63°20'.-—Eur.: Fær.; E.S.I.; throughout Europe ;
Caucasus.—Asia : Siberia, Altai, Asia Minor.—Western N. Africa.—Australia : (in-
troduced).
57. Arrhenatherum elatius (L.) M. & K., Deutschl. Fl. I (1823)
p. 546.
Avena elatior L., Helgi Jónsson, 1905, p. 66.—Stefánsson, Flóruaukar, 1919,
p. 32.—Stefánsson, Fl. ísl., ed. 2, 1924, p. 67.—O. & Gr., 1934, p. 22.—
Fl. Dan. tab. 165 and tab. 2643.