Atlas Of Ferns Of The British Isles

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8 LYCOPODIACEAE 0 7 6 5 0 4 .1x c DIPHASIASTRUM x ISSLERI CHANNEL ISLANDS PLOT TED ON UTM GRID Kilometres Miles 9 9 wv 1 100 4457 100 9 8 0 2 1 2 3 0 : O 1 2 4.1 x c. Diphasiastrum x issleri (Rouy) Holub (D.alpinum x complanatum (L.) Holub; Lycopodium var. deelPiens Syme ex Druce) Following studies by Lawalrée (Bull. Soc. R. bot. Belg., 9: 109- 120; 1957) records of this taxon appeared in British literature but confusion and doubt has persisted as to its true identity. J.Wilce (Beih. Nov. Hedw. 19: 93; 1965) suggests it is a hybrid derivative of the species mentioned above. Work carried out by I.Kukkonen (Ann. Bot. Fenn., 4:441-470; 1967) and A.Pacyna (Fragm. Fl. Geobot., 18: 255-297, 309-341; 1972) supports this and Pacyna has identified British material as being conspecific with Polish plants. The shape of the ventral median leaf and elongated leafy peduncles are diagnostic. Sowerby (Engl. Bot., ed 3.t. 1834*; 1886) illustrates plants from v.c. 37, named by 0 0 0 3 3 4 0 9 8 4 5 N1 HX HW N2 7 4 5 6 issleri (Rouy) Lawalrée; Lycopodium alpinum L. Syme in the legend as Lycopodium alpinum var. decipiens, a name later validated with a description by Druce (Ann. Scot. nat. Hist., 1892: 184; 1892). Subsequent botanists have used this name for a number of atypical D.alpinum gatherings from Scotland, some of which are most certainly growth forms from dense vegetation of the latter species. Although of hybrid origin the spores are only partly abortive and it can spread outside the range of the parents. However, D.complanatum may yet be found in Britain in dwarf shrub communities in areas of ancient woodland. 0 6 5 4 3 2
SELAGINELLACEAE 9 0 5.1 SELAGINELLA SELAGINOIDES Lesser Clubmoss ICionistres Mdee 9 100 9 00 000 000000 00000000 00000000 000 t 0 ., 00000 :::: 1 00 000 ::::28e 000000 000 0000000 0000000 00000 000 o$:6 00 00 00 1r: 0000 o 0 N1 8 0 7 5 s 6 5 0° 0 SS So .. oo -e S 00 2 00 go 0 oo 0 00 o 00 00 00000 °re 0000 0: 00i 5:::: 000 000 6:: 01:2 0 00 000 00 :00::00: 000 00 o 0 o 000 oo o 0 g .i 00 0 o 0 CHANNEL !SLAWS 9 PLOTTED ON 0 AN UTM GRID 100 0 8 16 000 000 0 000 00 1 2 3 4 1 2 3 4 5 6 o 9 ... N2 5.1. Selaginella selaginoides (I—) Link A northern and montane species with a distribution pattern in Britain and Ireland which is difficult to explain. Localities in Ireland are disappearing through changes in land-use but it is hoped that the southernmost sites will be conserved so that the ecological requirement of this species on the edge of its range can be studied. In England the south-eastern populations have disappeared, the species last being seen at Scotton, v.c. 54, in 1948 (J.E.Gibbons, FL Lincolnshire: 80; 1975). 4 6 0 6 5 4 3 2 1
Page 1 and 2: Atlas of Ferns of the British Isles
Page 3 and 4: ATLAS OF FERNS OF THE BRITISH ISLES
Page 5 and 6: It is now 16 years since the public
Page 7 and 8: LYCOPODIACEAE 3 0 7 5 0 8 0 1.1 LYC
Page 9 and 10: LYCOPODIACEAE 5 0 7 8 2.1 LYCOPODIE
Page 11: LYCOPODIACEAE 7 0 6 5 0 0 4.1 DIPHA
Page 15 and 16: 0 8 9 0 CHANNEL ISLANDS PLOT TED ON
Page 17 and 18: ISOETACEAE 6.3 ISOETES HISTRIX Land
Page 19 and 20: EQUISETACEAE 15 0 6 5 0 7.1x r EQUI
Page 21 and 22: EQUISETACEAE 17 0 0 7.2 EQUISETUM V
Page 23 and 24: EQUISETACEAE 19 0 7 6 5 0 7.3x7 ®E
Page 25 and 26: EQUISETACEAE 21 0 6 5 0 7.4x3 EQUIS
Page 27 and 28: EQUISETACEAE 0 6 0 7.5 EQUISETUM N2
Page 29 and 30: EQUISETACEAE 0 6 7.7 EQUISETUM PALU
Page 31 and 32: OPHIOGLOSSACEAE 27 0 0 8.1 CHANNEL
Page 33 and 34: OPHIOGLOSSACEAE 29 0 0 9.2 OPHIOGLO
Page 35 and 36: OSMUNDACEAE 0 6 0 10.1 OSMUNDA REGA
Page 37 and 38: ADIANTACEAE 33 0 1 2 3 0 0 12 .1 0
Page 39 and 40: HYMENOPHYLLACEAE 35 0 1 2 3 0 0 14.
Page 41 and 42: HYMENOPHYLLACEAE 37 0 6 5 0 8 0 15.
Page 43 and 44: POLYPODIACEAE 0 6 5 0 16.1 POLYPODI
Page 45 and 46: POLYPODIACEAE 41 0 7 8 0 16.2 x1 PO
Page 47 and 48: POLYPODIACEAE 0 6 5 0 8 16.3x1 POLY
Page 49 and 50: DENNSTAEDTIACEAE 0 0 17.1 PTERI DI
Page 51 and 52: THELYPTERIDACEAE 47 0 6 5 0 19.1 PH
Page 53 and 54: ASPLENIACEAE 0 6 0 21.1 ASPLENIUM S
Page 55 and 56: ASPLENIACEAE 0 6 5 0 21.2 ASPLENIUM
Page 57 and 58: ASPLENIACEAE 53 0 7 6 5 0 21.3 ASPL
Page 59 and 60: ASPLENIACEAE 55 0 0 6 5 21.5 ASPLEN
Page 61 and 62: ASPLENIACEAE 57 0 21.7 ASPLENIUM TR
Page 63 and 64:
ASPLENIACEAE 59 0 0 5 21.7b ASPLENI
Page 65 and 66:
ASPLENIACEAE 61 0 0 7 6 5 8 21.8 AS
Page 67 and 68:
ASPLENIACEAE 63 0 7 6 5 0 8 21.9 x
Page 69 and 70:
ASPLENIACEAE 0 1 2 3 o o 21.10x 7a
Page 71 and 72:
ATHYRIACEAE 67 0 1 2 3 4 0 0 22.1 A
Page 73 and 74:
ATHYRIACEAE 69 0 5 22.3 ATHYRIUM FL
Page 75 and 76:
ATHYRIACEAE 71 0 6 5 23.2 GYMNOCARP
Page 77 and 78:
ATHYRIACEAE 73 0 6 5 0 8 24.2 CYSTO
Page 79 and 80:
ATHYRIACEAE 0 6 5 0 25.1 WOODSIA IL
Page 81 and 82:
ASPIDIACEAE 0 0 6 5 26.1 POLYSTICHU
Page 83 and 84:
ASPIDIACEAE 79 0 6 5 0 26.2 x3 POLY
Page 85 and 86:
ASPIDIACEAE 0 7 0 27.1 DRYOPTERIS O
Page 87 and 88:
ASPIDIACEAE 0 6 0 8 27.2 DRYOPTERIS
Page 89 and 90:
ASPIDIACEAE 85 7 6 5 4 0 8 27.2x 3
Page 91 and 92:
ASPIDIACEAE 0 6 5 0 27.4 DRYOPTERIS
Page 93 and 94:
ASPIDIACEAE 89 0 7 5 0 0 27.6 DRYOP
Page 95 and 96:
ASPIDIACEAE 91 27.8 DRYOPTERIS 1 2
Page 97 and 98:
ASPIDIACEAE 93 6 5 0 27.9 DRYOPTERI
Page 99 and 100:
ASPIDIACEAE 95 0 7 6 5 27. 9 x 10 D
Page 101 and 102:
BLECHNACEAE 97 0 6 5 0 28.1 BLECHNU
Page 103 and 104:
AZOLLACEAE 99 0 5 0 8 30.1 AZOLLA F
Page 105:
Equisetum arvense 19, 20 x fluviati
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Atlas Of Ferns Of The British Isles

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