The Botany of Iceland - 01.12.1942, Side 219
THE PTERIDOPHYTA AND SPERMATOPHYTA OF ICELAND
217
Chenopodium album Linn.
Gliemann, 1824, p. 139.—Babington, 1871, p. 323.—Gronlund, Isl. Fl., 1881, p. 87.
—Stefánsson, Fl. ísl., ed. 1, 1901, p. 93.—Ibid., ed. 2, 1924, p. 104.—O. & Gr.,
1934, p. 64.
Icelandic: Hjelunjóli. Danish: Hvidmelet Gaasefod. English : Fat Hen.
Only occurring as an accidentally introduced weed; in cultivated soil around
houses, in gardens; evidently not naturalized. Specimens with ripe fruits not
observed.
Portulacaceae.
179. Montia lamprosperma Cham., in Linnaea VI (1831) p. 564,
tab. VII, fig. 2.
Montia fontana, K. & M., 1770, p. 205.—Babington, 1871, p. 306.—Montia
rivularis Gmel., Gronlund, Isl. Fl., 1881, p. 39.—H. Jónsson, 1896, p. 340.—
Stefánsson, Fl. ísl., ed. 1, 1901, p. 94.—Ibid., ed. 2, 1924, p. 105.—M. lam-
prosþerma Cham., O. & Gr., 1934, p. 65.
Flora Dan. tab. 1926.
Icelandic: Lækjagrýta. Danish: Stor Vandarve. English: Water Chickweed.
Common in all parts, in the lowland as well as the central highland.
The seeds of the Icelandic specimens in H.H. are typical of M. lamprosþerma
Cham.
Life-form: Th. and HH (Helo-Hydrophyte).
Along brooks, in ditches, in moist mossy places, in the flag-vegetation, moist rocks,
at springs, etc.
Flor. VI—VII; fr. mat. VI—VIII.
Max. length of shoots: 30 cm; average: 6 cm.
Geogr. area : Am.: Labrador to Maine; E. of Quebec; Alaska.—Greenl.: W. 60°—
70°40'. E. 60°—65°37'.—Eur.: Fær.; E.S.I.; throughout most of Europe.—Asia :
Okhotsk, Kamchatka, Sakhalin.
Caryophyllaceae.
Par onychioideae.
180. Spergula arvensis Linn., Sp. pl. ed. I (1753) p. 440.
K. & M., 1770, p. 207.—Baring-Gould, 1863, p. 426.—Babington, 1871,
p. 297.—Gronlund, Isl. Fl., 1881, p. 38.—Stefánsson, Fl. ísl., ed. 1, 1901,
p. 86.—Ibid., ed. 2, 1924, p. 97,—O. & Gr., 1934, p. 64.
Flora Dan. tab. 1033.
Icelandic: Skurfa. Danish: Almindelig Spergel. English: Corn Spurrey.
This species which may originally have been accidentally introduced with other
kinds of seeds is now fully naturalized ; it is not merely confined to the cultivated
areas but may be found growing abundantly far from inhabited places, though
usually in a dwarfish form, in fell-field. The form usually occurring in Iceland is
f. sativa Boenn., with black, finely punctate seeds.
Rather common in S.W. and S., rare in N., N.W. and E.; not recorded from
the central parts.