The Botany of Iceland - 01.12.1942, Page 292

290
JOHS. GRONTVED
Flor. VII—VIII; fr. mat. VIII—IX.
Max. length of shoots: 10 cm; average: 5 cm.
Geogr. area: Am. : N. Am. from Quebec to Washington, southward to New York,
Utah and Colorado. S. Am.: Bolivia.—Greenl.: W. 68°35'—70°9’.—Eur.: Fær.;
E.S.I.; Scandinavia from 70°25' N. lat., southward to northern Germany and S.
Russia.—Asia: Northern Siberia, southward to the Tomsk prov., northern Mongolia,
Sakhalin, Kamchatka.
285. Callitriche hamulata Kiitz., ex Koch, Syn. Fl. Germ. ed. II
(1843) p. 271.
Stefánsson, Fl. ísl., ed. 1, 1901, p. 118.—Ibid., ed. 2, 1924, p. 132.—H. Jóns-
son, 1896, p. 342.—O. & Gr., 1934, p. 80.
Flora Dan. tab. 2972.
Icelandic : Sikjabrúða. Danish : Smalbladet Vandstjerne.
Common in N. and S., and found in several places in the other parts of the
land. Not recorded from the central highland.
The variety þedunculata (DC.), with + longstalked fruits, sometimes growing
above water, and with broadly linear leaves, has been found in two localities:
Meðalfellsvatn, W. (G.M., 1902), and Laugarvatn, S. (H.J., 1911).
Life-form: HH (Hydrophyte).
In ponds and ditches, in brooks, and in places with slowly running water in the
rivers.
Flor. VII—VIII; fr. mat. VII—VIII.
Max. length of shoots: 35 cm; average: 15 cm.
Geogr. area: Greenl.: 60°—61°13' and 68°42'. E. 60°—63°5'.—Eur.: Fær.; E.S.I.;
throughout Europe.