Atlas Of Ferns Of The British Isles
Atlas Of Ferns Of The British Isles Atlas Of Ferns Of The British Isles
16 EQUISETACEAE 0 1 2 3 4 0 0 0 6 5 7.1x2 EQUISETUM X TRACHYODON 9 9 I? Kipmene Miles 9 CHANNEL GLANDS PLOT TED ON 0 wv UTM GRID 100 I AC0 0 0 100 0 8 8 2 .0 1 2 7.1 x 2 Equisetum X trachyodon A.Braun (E.hyemale x variegatum) A hybrid with a distinct Atlantic distribution which however may be under-recorded on the European mainland. The E.variegatum parent is most likely the lowland (and often coastal) ecotype of that species and the hybrid is therefore more rare in Scotland where the mountain form predominates than the distribution of the parent species would suggest. Some previously reported records from Ireland have proved to be forms of E.variegatum. Small plants may be separated from that species by the long sheath and the long teeth with narrow membraneous margins; the cones have abortive spores (see J.G.Duckett & C.N.Page, in C.A.Stace (ed.), loc.cit.: 100). 3 4 -(2 8 Ni 0 7 5 HX HW N2 5 6 4 6 6 5 4 3 2 1
EQUISETACEAE 17 0 0 7.2 EQUISETUM VAR I EGATUM Variegated Horsetail CHANNEL ISLANDS PLOT TED ON 0 wv UTM GRID s. 0 1 2 3 9 9 8 p 2 3 4 5 7.2 Equisetum variegatum Schleicher ex Weber & Mohr N1 A northern-montane species of wet alpine ledges yet also characteristic of coastal sand-dune slacks in the west. E.wilsonii Newm., Originally described from Muckross, v.c. H2, hitherto regarded as this species needs further investigation as do sand-dune populations in Britain (see J.A.Crabbe, A.C.Jermy & G.A.Matthews, Proc. Bot. Soc. Brit. Isles, 6: 40-42; 1965). N2 0 0
- 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 and 12: LYCOPODIACEAE 7 0 6 5 0 0 4.1 DIPHA
- Page 13 and 14: SELAGINELLACEAE 9 0 5.1 SELAGINELLA
- 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: EQUISETACEAE 15 0 6 5 0 7.1x r EQUI
- 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
16 EQUISETACEAE<br />
0 1 2 3 4<br />
0 0<br />
0<br />
6<br />
5<br />
7.1x2<br />
EQUISETUM<br />
X TRACHYODON 9 9<br />
I?<br />
Kipmene<br />
Miles<br />
9<br />
CHANNEL GLANDS<br />
PLOT TED ON 0 wv<br />
UTM GRID<br />
100<br />
I AC0<br />
0<br />
0<br />
100<br />
0<br />
8<br />
8<br />
2<br />
.0<br />
1 2<br />
7.1 x 2 Equisetum X trachyodon A.Braun<br />
(E.hyemale x variegatum)<br />
A hybrid with a distinct Atlantic distribution which however<br />
may be under-recorded on the European mainland. <strong>The</strong><br />
E.variegatum parent is most likely the lowland (and often<br />
coastal) ecotype of that species and the hybrid is therefore more<br />
rare in Scotland where the mountain form predominates than<br />
the distribution of the parent species would suggest. Some<br />
previously reported records from Ireland have proved to be<br />
forms of E.variegatum. Small plants may be separated from<br />
that species by the long sheath and the long teeth with narrow<br />
membraneous margins; the cones have abortive spores (see<br />
J.G.Duckett & C.N.Page, in C.A.Stace (ed.), loc.cit.: 100).<br />
3 4<br />
-(2<br />
8<br />
Ni<br />
0<br />
7<br />
5<br />
HX<br />
HW<br />
N2<br />
5 6<br />
4<br />
6<br />
6<br />
5<br />
4<br />
3<br />
2<br />
1