Atlas Of Ferns Of The British Isles

50
0
0
7
6
5
8
21.1x7b
ASPLENIUM
X CONFLUENS
21.5 x1
OASPLENIUM
X MICRODON
CHANNEL ISLANDS
PLOT TED ON 0 wv
UTM GRID
100
9
8
9 0
0
2
1 2
.//
.61
SI
1 2
21.1 x 7b Asplenium X confluens
(T.Moore ex Lowe) Lawalr&
(A .scolopendrium x trichomanes subsp. quadrivalens;
x Asplenophyllitis confluens (T.Moore &
Lowe)
This hybrid was found at Levens Park, v.c. 69, in 1865 and at
Whitby, v.c. 62, and Killarney, v.c. H2, around 1875; it has not
been found since. The plants are more like A .trichomanes with
stouter rachides and thicker leaf tissue, the upper pinnae being
confluent. (See A.G.H.Alston, Proc.Linn.Soc.Lond., 152:
139; 1940 and J.D.Lovis in C.A.Stace (ed.), Hybridisation
and the Flora of the British Isles: 105; 1975).
3
3 4
9
4 5
Ni
7
5
HX
HW
ASPLENIACEAE
21.5 x 1 Asplenium X microdon
(T.Moore) Lovis & Vida
(A .billotii x scolopendrium; x Asplenophyllitis
microdon (T.Moore) Alston)
This hybrid, intermediate between parents, is likely to
be confused only with A. x jacksonii: the latter has a triangular
frond-shape instead of a tapered one as in A. x microdon. (See
P .J.Girard & J .D.Lovis , Br.Fern Gaz. 10: 1-8 (1968);
J.D.Lovis & G . Vida, Br.Fern Gaz. 10: 53-67 (1969); J. D.Lovis
in C.A.Stace (ed.), loc.cit.: 104; and A.G.H.Alston, loc.cit.:
140).
N2
4
6
6
CZ,
0
6
5
4
3
2
0