Fróðskaparrit - 01.01.2001, Blaðsíða 25

REYÐTARAR AV BÓLKINUM BANGIOPHYCIDAE í FØROYSKUM ØKI
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ture this phase is morphologically distinct between
species (Brodie and Irvine, 2002).
Morphology: rose-red spots in calcified material, con-
sisting of uniseriate filaments with alternate or op-
posite branches. Cells cylindrical or irregularly
swollen to globular.
* Erythrocladia irregularis Rosenv. (Fig. 2A.
B)
Reference: Kornmann and Sahling (1985).
Stations: 1283, 1903.
Sublittoral, 5-10 m depth.
Remarks: collected in August-September: monospo-
rangia present. Epiphytic on Palmaria palmala (L.)
Kuntse and Desmarestia viridis (O.F.Mull.)
J.V.Lamour.
Morphology: thallus microscopic, bright red, prostrate
filaments forming irregular patches on host.
* Erythrotrichia bertholdii Batters (Fig. 2C,
D)
Reference: Brodie and Irvine (2002).
Stations: 1003, 1005, 1008, 1017, 1117, 1118, 1140,
1305.
Sublittoral, 0-20 m depth.
Remarks: collected in June-July and September. Epi-
phytic on Polysiphonia stricta (Dillwyn) Grev.,
Pterosiphonia parasitica (Huds.) Falkenberg,
Ptilota gunneri P.C.Silva, Maggs & L.M.Irvine,
Desmarestia aculeata (L.) J.V.Lamour., Ectocar-
pus siliculosus (Dillwyn) Lyngb., Cladophora ru-
pestris (L.) Kiitz. and epizoic on a hydroid.
Morphology: thallus microscopic, purple-red, erect,
unbranched filaments, uniseriate below, becoming
multiseriate and cylindrical above. Attached by 2-3
elongated basal cells.
Erythrotrichia carnea (Diiiwyn) j.Agardh (Fig.
2E)
Erythrotrichia ceramicola (Lyngb.) Aresch.
Reference: Kommann and Sahling (1985), Rosenvinge
(1909).
Stations: 1041, 1042, 1043, 1116, 1119, 1127, 1272,
1275, 1349, 1682, 1686.
Littoral to 15 m depth.
Remarks: collected in April, June-July and September.
Epiphytic on Ceramium rubrum (Huds.) C.Agardh,
Cystoclonium purpureum (Huds.) Batters, Polysi-
phonia fucoides (Huds.) Grev., Desmarestia
viridis, Laminaria faeroensis Børgesen, Dic-
tyosiphon ekmanii Aresch., D.foeniculaceus
(Huds.) Grev., Cladophora flexuosa (O.F.Mull.)
Kiitz. and C. rupestris.
Morphology: thallus microscopic, rose-red, erect, un-
branched, uniseriate filaments. Attached by a sin-
gle expanded cell.
Porphyra amplissima (Kjellm.) Setch. & Hus
(Fig. 1)
Porphyra miniata (C.Agardh) C.Agardh f. amplissima
(Kjellm.) Rosenv.
References: Bird and McLachlan (1992), Brodie and
Irvine (2002).
Stations: 1046, 1111, 1116, 1119, 1126, 1127, 1137,
1274, 1359, 1360, 1776.
Sublittoral, 0-15 (-20) m depth.
Remarks: collected in May-July and September.
Morphology: blade can be one or two cells thick, obo-
vate. Margins usually with ruffles (folds in the
frond). These become very apparent in herbarium
specimens extending from near middle of blade.
Stipe often conspicuous, up to about 1 mm. Male
gametangial and zygotosporangial sori marginal,
intermixed on the same blade. Older specimens
with paler yellowish margins where male gametan-
gia and spores have been released.
Herbarium specimens: pink to pink-magenta, adhering
well and integrating with the paper, making it hard
to distinguish the edge of pressed specimens by
feel, whereas it is possible with the other sublittoral
species P. miniata.
Porphyra dioica Brodie & L.M.Irvine (Fig. 1)
Porphyra umbilicalis (L.) J.Agardh f. laciniata
(C.Agardh) LeJol.
References: Brodie et al. (1996), Brodie and Irvine
(1997).
Stations: 1043, 1137, 1174, 1183, 1272, 1282, 1288,
1289, 1297, 1347, 1348, 1349, 1351, 1352, 1353,
1355, 1357, 1358, 1362, 1364, 1696, 1697, 1709,
1732, 1738, 1768, 1771, 1773, 1774, 1775, 1779,
1780, 1781.
Littoral, including rockpools.
Remarks: collected in February and April-October.
Morphology: blade one cell thick mostly broadly oval
in shape, often elongate; one to several blades from