The Botany of Iceland - 01.12.1942, Blaðsíða 223
THE PTERIDOPITYTA AND SPERMATOPHYTA OF ICELAND
221
Fig. 82. Cerastium Edmondstonii (Wats.) Murb. & Ostf.
The capsule of C. Edmondstonii is broadly ovate, only slightly curved, and
usually not so long as in C. alþinum, also, it is somewhat constricted just below the
orifice. The secds are yellowish-brown, ncarly orbicular (diam. 1.4—1.7 mm), at
the margin coarsely warty, while the two flattened sides are only wrinkled.
In C. alþinum thc capsules are cylindric, longer, somewhat curved. The seeds are
somewhat smaller, oblong (diam. 0.9—1.1 mm), and all over the surface there
are smallcr warts or spines. The colour is darker (mahogany) brownish.
Life-form: Ch.
In gravelly soil, fell-field, etc.
Flor. VI—VII; fr. mat. VII—VIII.
Max. height: 13 cm ; average: 7 cm.
Geogr. arca : Grecnl. : (W.?).—Eur. : Fær.; E.S. ; Shctland. Spitsbergen.
186. Cerastium glomeratum Thuill., Fl. Par. ed. II (1799) p. 226.
C. viscosum, K. & M., 1770, p. 207.—C. glomeratum Thuill., Babington,
1871, p. 299.—Gronlund, Isl. Fl., 1881, p. 37.—E. Rostrup, 1887, p. 176.—
H. Jónsson, 1896, p. 339,—O. & Gr., 1934, p. 59.
Flora Dan. tab. 1931.
Icclandic: Hnoðafræhyrna. Danish: Opret Honsetarm. English: Broad-leaved
Mouse-ear.
A specimen collectcd in Arnessýsla, S., by Dr. Krabbe is the first evidence of its
having been found in Iccland, although it was already recorded by K. & M., loc.
eit. Rccently (1928) it has bcen found by Th. Sorensen in S. Icel. in several places, sec
in'th^' an<^ sceras t0 be rather frequent thcre. Most likely it is widely distributed
1 <. southwestern parts. Specimens from the hot springs at Laugarvatn were dwar-
'S j measur*ng from 1 to 4 cm in height.
S<'ms to confined mainly to the cultivatcd areas and has presumably been