Fróðskaparrit - 01.01.2001, Qupperneq 37

Fróðskaparrit - 01.01.2001, Qupperneq 37
KORALTARAR (CORALLINALES, RHODOPHYTA) í FØROYSKUM ØKI 41 Remarks: collected in April-September. On rocks, bar- nacles and epiphytic on Chondrus crispus Stackh., Mastocarpus stellatus (Stackh. in With.) Guiry in Guiry et al. and stipe of Laminaria hyperborea. *Titanoderma pustulatum (J.v.F.Lamour.) Nageli VCU'. confine (P.Crouan & H.Crouan) Y.M.Chamb. (Fig. 3) Reference: Chamberlain and Irvine (1994a). Stations: 1351, 1366, 1783. Littoral to 15 (15-20) m depth. Remarks: collected in May, July and August. Tetraspo- rangia were observed in August. On rocks and epi- zoic on bamacles. Titanoderma pustulatum (J.V.F.Lamour.) Nageli var. macrocarpum (Rosanoff) Y.M.Chamb. Synonyms: Dermatolithon hapalidioides Foslie, Der- matolithon macrocarpum (Rosanoff) Foslie, Melobesia macrocarpa Rosanoff. Reference: Chhmberlain and Irvine (1994a). Stations: 1032, 1036, 1365. 10 (10-12) mdepth. Remarks: collected in May and July. Conceptacles were present in July. On rocks and epiphytic on Phyllophora crispa (Huds.) P.S.Dixon. Discussion In the recently collected material 14 species were identified; they belong in the subfam- ilies Corallinoideae, Lithophylloideae and Melobesioideae. The number is an under- estimate of the diversity of coralline red al- gae on the Faroe Islands as species of Mastophoroideae, never reported from the area, were observed, but the identification of these species is left for future studies. Lithophyllum orbiculatum, (Fig. 1), Melobesia membranacea (Fig. 2) and Ti- tanoderma pustulatum var. confine (Fig. 3) are new records for the Faroe Islands. The reason for the absence of L. orbicu- latum in former publications could be diffi- Fig. 3. Titanoderma pustulatum var. confine culties with identification as in the British Isles where this species was overlooked be- cause of nomenclatural confusion with L. crouanii (Chamberlain et al., 1988) or it was misidentified as Lithophyllum incrus- tans or Phymatolithon lenormandii accord- ing to Chamberlain etal. (1991) and Cham- berlain and Irvine (1994a). Melobesia membranacea has probably been overlooked in previous studies in which small, epiphytic species have been ignored. The absence in the species lists need therefore not indicate the actual ab- sence of this species from the area studied. Recently, a survey of coralline red algae in Denmark and identification of species at Sogn and Fjorđane, Norway were accom- plished (Wegeberg, 2000, Lein et al., 1998; 1999). These investigations, together with
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