Fróðskaparrit - 01.01.1993, Side 86

90 SALIX IN THE FAROE ISLANDS AND THEIR AFFINITY WITH THE POPULATIONS IN ICELAND
growing on gravel banks near the village
Hvalvík on Streymoy and I saw one plant
near a brooklet in the village on Kunoy, but
it might well have been planted there. Salix
phylicifolia has been reported from several
localities (Hansen, 1966), but as there is no
doubt about the determination of this
species no material was collected.
Salix arctica and S. lanata are only
growing on inaccessible small ledges in
steep cliffs in the mountains. I succeeded in
getting samples from three localities. They
were collected on May 21 and 22 and at
that time in the mountains the willows had
not come into leaves. Twigs were collected
in all the localities for culture and the cut-
tings that rooted are being cultivated in
Reykjavík. In gardens in Tórshavn I saw
cultivated plants of these species of known
origin. The leaves and catkins were appear-
ing on the cultivated plants so they were
easily determined. Afterwards I examined
the herbarium specimens from the Faroe Is-
lands which are conserved in Copenhagen
(C) and the specimens in the Museum of
Natural History in Tórshavn (T) were lent
to me for a while.
As a comparison I also examined the col-
lection of Salix glauca L. in the herbarium
in Oslo as well as specimens of Salix arcti-
ca and S. glauca from Greenland which are
in the herbarium in Copenhagen and the
Icelandic collections of 5. arctica in the
museums of Natural History in Reykjavík
and Akureyri. I have examined these
species in the field in the different regions
of Iceland, in several parts of the Scandina-
vian mountains and in Mestersvig in NE-
Greenland. My collections from there are
preserved in the museum in Akureyri. A
good deal of living plants from my collec-
tion have been cultivated in Akureyri and in
Reykjavík and also some plants of Salix
glauca I have received from SW-Green-
land.
Salix lanata L.
Specimens seen in herbarium
l.Streymoy, gjov mellem Hvalvík og Vestmannahavn;
Patursson, 15 August 1910 (C).
2.Streymoy, Vestmanna Móskurðsfjall; The Botanical
Investigation ofthe Faroe Islands 1960 -61, no. S5B5
and 8586, 14 August 1961 (C) and (T).
3.Streymoy, Vestmanna, Bjarnardalur, Jóhs. Jóhansen,
14 August 1961 (T).
Samples of Salix lanata were collected at
the only known locality in the Faroe Is-
lands. From the cuttings I succeeded to
grow two clones of different sexes. Both of
them are very lowgrowing, almost prostrate
and not more than 20-30 cm high with very
broad leaves. In the gardens of the Museum
of Natural History in Tórshavn and J.
Dahl’s in Skræddaragota in Hoyvík there
are cultivated plants of the same origin and
similar appearance. The herbarium speci-
mens in Copenhagen and Tórshavn all
seem to be of same origin, i.e. from
Bjamardalur, south of Móskurðsfjall in
Streymoy.
The oldest specimens of this species in
the herbarium in Copenhagen are deter-
mined by Floderus as Salix glandulifera B.
Flod. Bjórn Floderus, is a famous Swedish
Sa//x-expert in the former half of this cen-
tury. Salix glandulifera is a species related
to Salix lanata but distinguished by glandu-