Fróðskaparrit - 01.01.2001, Page 88

92
SEAWEEDS OF THE FAROEISLANDS
AN ANNOTATED CHECKLIST
Excluded species
Callithamnion decompositum J. Agardh
See note to Aglaothamnion priceanum.
Callithamnion granulatum (Ducluz.) C.Agardh
Recorded by Børgesen (1902) but “almost certainly in
error” (Irvine, 1982).
Ceramium ciliatum applied by Lyngbye (1819) for
specimens of C. shutleworthianum according to
Børgesen (1902).
Griffithsia corallinoides (L.) Trevis.
Griffithsia corallina (Lightf.) C.Agardh.
Records by Landt (1800) probably based on
misidentification according to Børgesen (1902).
Dictyosiphon chordaria Aresch.
A single specimen was reported by Irvine (1982) with
doubt.
Elachista flaccida (Dillwyn) Aresch.
Records by Lyngbye (1819) and Simmons (1897) are
based on misidentifications (Børgesen, 1902).
Fucus ceranoides L.
Records by Lyngby (1819) are doubtful (Børgesen,
1902).
Halidrys siliquosa (L.) Lyngb.
Reference: Rueness (1998).
The only records from the Faroe Islands are based on
material collected by Børgesen (1902). Probably
now extinct from the area as the species were not
found by the British expedition (Irvine, 1982) and
not by us although searched for at the same locality
as reported by Børgesen (1902).
Herponema velutinum (Grev.) J.Agardh
Ectocarpus velutinus (Grev.) Kiitz.
Records by Simmons (1897) are doubtful (Børgesen,
1902).
Pvlaiella varia Kjellm.
Pilayella varia Kjellm.
The record of Ectocarpus littoralis (L.) Lyngb. emed.
Kuck. var. varia (Kjellm.) Kuck. by Børgesen (1902)
needs confirmation. Among Børgesens herbarium
material in (C) is only a single slide preparation of
fragmented material. The record was referred to
Pilayella sp. by Siemer and Pedersen (1995, Table 1,
p. 265).
Saccorhiza polvschides (Lightf.) Batters
Older reports of Saccorhiza hulbosa Bach.Pyl. are
probably incorrect according to Børgesen (1902).
Acrosiphonia centralis (Lyngb.) Kjellm.
Conferva arcta Dillwyn f. centralis Lyngb.
Records by Simmons (1897) and Rostrup (1870) are
based on misidentifications (Børgesen, 1902).
Acrosiphonia grandis Kjellm.
Records by Simmons (1897) are based on
misidentification (Børgesen, 1902).
Cladophora fracta (O.F.Mull. ex Vahl) Kiitz.
Older records are doubtful (Børgesen, 1902). A
specimen in (C) referred to C.fracta var. elongata by
Lyngbye was reexamined and prooved to be C. sericea
by Hoek (1963).
Enteromorpha muscoides (Clemente) Cremades in
Cremades & Perez-Cirera
Enteromorpha clathrata (Roth) Grev.
Reference: Koeman and Hoek (1984).
Only recorded by Børgesen (1902), uncertain as re-ex-
amination of specimens in (C) referred to E. clatra-
ta by Børgesen proved them to be E. prolifera.
Specimens referred to E. ramulosa by Simmons
(1897) probably also belong into this entity (see
Børgesen, 1902, p. 494).
Ulva crassa Kjellm.
Probably synonymous with Ulva lactuca (see Bliding,
1968 p. 544).
Discussion
The 113 Rhodophyceae, 83 Phaeophyceae,
4 Xanthophyceae and 64 Chlorophyceae
listed here total to 264 species, 42 of these
are new records for the Faroe Island. We
also identified 18 Cyanophyceae.
Lyngbye (1819) included about 100
species of marine algae from the Faroe Is-