The Botany of Iceland - 01.12.1942, Blaðsíða 278

276
JOHS. GRONTVED
267. Potentilla Crantzii (Crantz) Beck in sched. ex Fl. N. Österr.
(1892) p. 760.
P. alþestris, Babington, 1848, p. 18.—P. verna, Hook., in Mackenzie, 1811,
p. 423.—P. maculata, Vahl, 1840, p. 372.—Babington, 1871, p. 302.—Gron-
lund, Isl. Fl., 1881, p. 23.—P. verna L., Stefánsson, Fl. ísl., ed. 1, 1901,
p. 132.—Ibid., ed. 2, 1924, p. 148,—P. alþestris Hall. fil., O. & Gr., 1934,
p. 88.
Icon.: Hegi, 111. FL, IV, 2, p. 868, fig. 1137.
Icelandic: Gullmura. Danish : Plettet Potentil. English : Alpine Cinquefoil.
Common in all parts, in the lowland as well as the central highland.
Very variable with respect to the size of the flowers, and the hairiness and
incision of the leaves. The Icelandic plants seem to be somewhat different from the
Greenlandic forms of this species.
Life-form: H.
On heaths, grassy slopes, amongst loose rocks, in debris and screes, fell-field, grass-
moors, heaths.
Flor. VI—VII; fr. mat. VII—VIII.
Max. height: 25 cm; average: 11 cm.
Geogr. area : N. Am. : Labrador.—Greenl.: W. 60°—72°. E. 60°—74° 13'.—Eur.:
Fær.; E.S.I.; Scandinavia and northern Russia, Novaya Zemlya, Spitsbergen.
Pyrenees, Alps, Karpathians, Caucasus.-—Asia: Northwestern Siberia; Armenia, Asia
Minor, Thian Shan.
Potentilla erecta (L.) Hampe.
Tormentilla erecta, Mohr, 1786, p. 191.—P. Tormentilla Babington, 1871, p. 303.—
Gronlund, Isl. Fl., 1881, p. 23.—Rostrup, 1887, p. 173.
According to Babington, loc. cit., Symington has found this species at Seyðis-
fjörður E., and Babington has seen this specimen. No doubt the plant must have
been a specimen accidentally introduced. This may also be the case with the speci-
mens found at Hallbjarnareyri in W. Icel. (cp. Rostrup, loc. cit.).
Potentilla norvegica Linn.
Stefánsson, 1919, p. 36.—Idem, Fl. IsL, ed. 2, 1924, p. 148.—P. monsþeliensis L.,
O. & Gr., 1934, p. 89.
Found at Ytra-Hvarf in Svarfaðardalur 1917 by Ing. Óskarsson. Stefánsson, 1919,
loc. cit., does not think it unlikely that it might be an old inhabitant of Iceland,
although he admits that the locality where it was found might suggest an introduc-
tion in very recent times.
268. Rosa Afzeliana Fries, in Liljeblad, Utkast till en Svensk Flora
(1816) p. 715. (Syn. R. Afzeliana ssp. vosagica Rob. Keller et
Gams in Hegi 111. Fl. IV. 2 (1923) p. 1035).1
R. canina L., H. Jónsson, 1905, p. 74.—Idem, 1907, p. 31.—Stefánsson, Fl.
ísl., ed. 2, 1924, p. 155.—Rosa glauca VilL, O. & Gr., 1934, p. 90.
Icon. : Hegi 111. Flora IV. 2, p. 1036, fig. 1230, a—e.
1 The Icelandic Roses in H.H. have most courteously been worked out by the
Danish Rhodologist, Mag. art. P. Herring, Copenhagen.