Fróðskaparrit - 01.01.1993, Blaðsíða 88

92 SALIX IN THE FAROE ISLANDS AND THEIR AFFINITY WITH THE POPULATIONS IN ICELAND
in Tórshavn are labelled as Salix glauca. In
Vascular Plants in the Faroes (Hansen,
1966) Salix lanata is not mentioned but the
locality at Bjamardalsá in Streymoy is
shown as a site for S. glauca. In Flora Eu-
ropaea (Rechinger, 1964) the Faroe Islands
are included within the distribution of Salix
lanata but it is not labelled on the distribu-
tion map (Jalas and Suominen, 1976). The
specimens in Copenhagen are rightly deter-
mined as Salix lanata by Skvortsov (1971)
and shown in the Atlas of North European
Vascular Plants (Hulten and Fries, 1986).
All the Faroese collections seem to be
from the same locality near the river Bjam-
ardalsá where Salix lanata is growing in
steep cliffs within a range about some hun-
dred square meters. It is difficult to say how
many individuals there are, but since there
are plants of both sexes they can produce
seeds and reproduce normally. Overgrazing
everywhere in the islands is the only expla-
nation why the population is so small and
all the plants are lingering in unaccessible
cliffs.
Salix arctica Pall. and hybrids
Specimens ofSalix arctica seen in
herbarium
1. Fugloy ca 600 m; Hartz et Ostenfeld, 7 August 1897
L(C).
2. Viðoy, Bergsmunni; Hartz et Ostenfeld, 12 August
1897(C).
3. Viðoy, Malinsfiall; Hartz et Ostenfeld, 19 August
1897 L K (C).
4. Kunoy, í Mittgili í gjáunum á Skarði; R.Rasmussen,
28 August 1906 L (T).
5. Viðoy, Ormadalur; Elisabeth Taylor, 15 June 1907
L(0-
6. Vágar, Gásadalur á Garðsfjollum; Mikkjal á Ryggi,
3 October 1926 L (7).
7. Svinoy; Heine Justinussen, 20 July 1928 L (T).
8. Vágar; Mikkjal á Ryggi, 1933 K (C) and (T).
9. Viðoy, Villingadalsfjall; Jóannes Rasmussen, 17
July 1946 L (T).
10. Kunoy, Skarð - 300 m; The Botanical lnvestigation
ofthe Faroe Islands 1960 - 61, 3 August 1961 L (T).
11. Kunoy, Skarð; Jóhs. Jóhansen, 4 August 1961 (T).
Specimens of the putative hybrids Salix
arctica x herbacea seen in herbarium
1. Kunoy, nordlige del af oen, ca 300 m; Hartz et
Ostenfeld, 27 August 1897 (O-
2. Viðoy, Viðareiði; R. Rasmussen, August 1932 K (T).
3. Viðoy, Viðareyði; R. Rasmussen, 8 August 1933 (T).
4. Vágar, Gásadalur; Mikkjal á Ryggi, 1933 K (O and
(T).
5. Kunoy, Skarð, 300 m; K. Hansen, 3 August 1961 L
(O.
Cuttings of Salix arctica were collected in
two places, in Villingadalsfjall on Viðoy
and in cliffs of the mountain-slopes east of
the village Kunoy, the latter place having
newly been discovered. Unfortunately the
cuttings from Kunoy did not root, but
plants (one clone) from Villingadalsfjall
are doing well in the municipal nursery in
Reykjavík. In the garden of T. Matras,
Frælsið 7 in Tórshavn I saw two cultivated
clones originating in Múli near Hvanna-
sund in northem part of Borðoy, collections
therefrom have not been reported before. In
the same garden and in J. Dahl’s garden at
Skræddaragota in Hoyvík there are plants
(presumably one clone) originating in
Gásadalur in Vágar.
In the paper “On the Vegetation and
Temperature of the Faroe Islands” (Treve-
lyan, 1835), Salix arctica is reported found
at 1300-1366 feet in Malinsfjall on Viðoy.
But the specimens in the herbariums in
Copenhagen and Tórshavn were from the