Fróðskaparrit - 01.01.2001, Side 88

Fróðskaparrit - 01.01.2001, Side 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-
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