Fróðskaparrit - 01.01.2001, Blaðsíða 24

28
THE BANGIOPHYTE SPECIES OF THE FAROE ISLANDS
Bangia atropurpurea (Roth) c.Agardh (Fig. 1)
Bangiafuscopurpurea (Dillwyn) Lyngb.
Reference: Kommann and Sahling (1977).
Stations: 1016, 1024, 1049, 1110, 1347, 1349, 1352,
1353, 1354, 1358, 1362, 1363, 1364, 1371, 1376,
1380, 1700, 1719, 1720, 1721, 1722, 1732, 1738,
1759, 1760, 1762, 1763, 1768, 1769, 1774, 1775,
1779, 1780, 1911, 1913.
Littoral.
Remarks: collected in April-August and October. Male
gametangia and zygotosporangia in May. On rocks
and occasionally on bamacles.
Morphology: thallus unbranched, filamentous (uni-
multiseriate).
Herbarium specimens: purplish-red to almost black, re-
sembling fine hair, ádhering well to paper.
Conchocelis phase
Stations: 1004, 1006, 1009, 1012, 1013, 1015, 1018,
1020, 1021, 1026, 1027, 1028, 1032, 1033, 1034,
1036, 1037, 1040, 1041, 1043, 1049, 1117, 1118,
1119, 1121, 1123, 1127, 1128, 1132, 1134, 1273,
1274, 1276, 1278, 1279, 1283, 1285, 1291, 1294,
1298, 1299, 1300, 1301, 1305, 1347, 1349, 1351,
1353, 1354, 1359, 1360, 1363, 1364, 1365, 1372,
1378, 1682, 1684, 1688, 1689, 1691, 1692, 1693,
1695, 1697, 1701, 1702, 1703, 1710, 1715, 1716,
1720, 1726, 1727, 1732, 1736, 1738, 1768, 1769,
1773, 1776, 1783, 1850, 1852, 1853, 1903, 1912,
1913.
Littoral to 25 m depth.
Remarks: collected in February, April-October. Fre-
quent in shells of bamacles, molluscs and tubes of
serpulid polychaetes. The identification of con-
chocelis to species level was not attempted. In cul-
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Fig. 2. A, B. Erythrocladia irregularis epiphytic on Osmundea pinnatifida. A. Central part with spores (arrow).
B. Free filaments at margin. C. Erythrotrichia bertholdii epiphytic on Desmarestia viridis, uniseriate tip (long
arrow) and base (short arrow). D. Basal cells ofE. bertholdii. E. Erythrotrichia carnea uniseriate filament, and
characteristic wall bulges; stellate plastid visible in some cells. F. Sahlingia subintegra showing bifurcate
marginal cell (arrow). A, B and F same magnification. D and E same magnification.