Fróðskaparrit - 01.01.2001, Side 22

Fróðskaparrit - 01.01.2001, Side 22
26 THE BANGIOPHYTE SPECIES OF THE FAROE ISLANDS the conspicuous blade phase and the incon- spicuous microscopic shell boring concho- celis phase. The conchocelis was originally described as a separate species, Conchoce- lis rosea Batters (Batters, 1892). In sexual reproduction, male gametangia and female gametes develop either on the same blade or on separate blades. After fertilisation, zygotosporangia release zygotospores that germinate into the diploid filamentous con- chocelis phase. This phase develops con- chosporangial branches with sporangia from which conchospores are released. These develop into the haploid blade phase. Asexual reproduction has also been report- ed and different species have the capacity to develop a variety of different spore types (for terminology see Nelson etai, 1999). It has also been proposed that some spores from the blade phase can produce haploid conchocelis filaments (Kornmann, 1994) and there is some evidence of this from chromosome counts in Porphyra dioica (Holmes, pers. comm.). Recently, the use of molecular techniques has made it possi- ble to obtain a much better understanding of the taxonomy of Porphyra at the species level (e.g. Brodie etal., 1996; 1998). Mole- cular data also indicate that Bangia atrop- urpurea from Denmark and the British Isles are closely related to Porphyra (Bro- die et al., 1998; see also Miiller et ai, 1998). This paper presents a list of bangiophyte species known for the Faroe Islands, sup- plemented with annotations to characterise the species and help with identification. For more detailed descriptions of most species see Brodie and Irvine (2002). Material and methods Algae were collected selectively by hand at 265 stations from the littoral to 25 m depth. Sublittoral collections were by Scuba div- ing. Collections were made at all seasons, but less in the winter months. The localities visited were on most of the larger islands and included places at the open coasts with different exposure to waves and more or less sheltered places in the fjords. Informa- tion about the localities with details of col- lection dates, depth and geographical coor- dinates for each station are available in Sørensen et ai (2001), while a map show- ing the locations of the stations is available in Nielsen and Gunnarsson (2001). The material was examined fresh when possi- ble, and for some collections after preser- vation in 2% formalin and stored in a deep freezer for one to several months. Speci- mens in shells and other calcified material were decalcified over night in a 5% acetic acid/water solution. Permanent slide prepa- rations were mounted in KARO® (corn syrup). Voucher specimens are kept in the Botanical Museum, Copenhagen (C) with duplicate collections in the Faroese Muse- um of Natural History, Tórshavn and the Marine Research Institute, Reykjavik, Ice- land. Molecular analyses were applied to confirm some of the identifications. The procedure was the same as used by Brodie et al. (1996; 1998). Names not in current use but applied by Simmons (1897), Børge- sen (1902) and Irvine (1982) are given. Au- thor names are abbreviated according to Brummit and Powell (1992).
Side 1
Side 2
Side 3
Side 4
Side 5
Side 6
Side 7
Side 8
Side 9
Side 10
Side 11
Side 12
Side 13
Side 14
Side 15
Side 16
Side 17
Side 18
Side 19
Side 20
Side 21
Side 22
Side 23
Side 24
Side 25
Side 26
Side 27
Side 28
Side 29
Side 30
Side 31
Side 32
Side 33
Side 34
Side 35
Side 36
Side 37
Side 38
Side 39
Side 40
Side 41
Side 42
Side 43
Side 44
Side 45
Side 46
Side 47
Side 48
Side 49
Side 50
Side 51
Side 52
Side 53
Side 54
Side 55
Side 56
Side 57
Side 58
Side 59
Side 60
Side 61
Side 62
Side 63
Side 64
Side 65
Side 66
Side 67
Side 68
Side 69
Side 70
Side 71
Side 72
Side 73
Side 74
Side 75
Side 76
Side 77
Side 78
Side 79
Side 80
Side 81
Side 82
Side 83
Side 84
Side 85
Side 86
Side 87
Side 88
Side 89
Side 90
Side 91
Side 92
Side 93
Side 94
Side 95
Side 96
Side 97
Side 98
Side 99
Side 100
Side 101
Side 102
Side 103
Side 104
Side 105
Side 106
Side 107
Side 108
Side 109
Side 110
Side 111
Side 112
Side 113
Side 114
Side 115
Side 116
Side 117
Side 118
Side 119
Side 120
Side 121
Side 122
Side 123
Side 124
Side 125
Side 126
Side 127
Side 128
Side 129
Side 130
Side 131
Side 132
Side 133
Side 134
Side 135
Side 136
Side 137
Side 138
Side 139
Side 140
Side 141
Side 142
Side 143
Side 144
Side 145
Side 146
Side 147
Side 148
Side 149
Side 150
Side 151
Side 152
Side 153
Side 154
Side 155
Side 156
Side 157
Side 158
Side 159
Side 160

x

Fróðskaparrit

Direkte link

Hvis du vil linke til denne avis/magasin, skal du bruge disse links:

Link til denne avis/magasin: Fróðskaparrit
https://timarit.is/publication/15

Link til dette eksemplar:

Link til denne side:

Link til denne artikel:

Venligst ikke link direkte til billeder eller PDfs på Timarit.is, da sådanne webadresser kan ændres uden advarsel. Brug venligst de angivne webadresser for at linke til sitet.