A c u l e a t u m , 3 7 , 3 9 , 4 0
A d ia n t u m n ig r u m , 6 8
Alaium, 88
Alpina, 3 5
Alpinum, 3 0
Altemifolium, v a r . 7 1 3
Angulare, v a r . 3 7
Angustata, v a r . 3 4
A q u il in a , 13
Ai'vonxcum, 3 0
Boreale, 12
Brevisetuin, 88
Calcareum, v a r . 2 7
Cambricum, v a r . 2 2
C a p i l l u s -V e n e r i s , 9
Ceterach, 8 5
Concavum, 6 1
Crispa, IS
C r i s p u s , 18
C r i s t a t a , 5 4
Cristatum, 5 4
Dentata, v a r . 3 2
Dentatum, 3 2
D il a t a t a , 5 8 , 5 9 , 6 0 , 61
Dilatatum, 5 9
D r y o p t e r i s , 2 6 , 2 7
Dumetorum, v a r . 6 0
Femina, 13
F i l ix - f e m in a , 6 3 , 6 4
F i l ix - m a s , 51
Fontanum, ( P o l y .) 3 0
Fontanum, (A s p l . ) 4
Fontanum, (A d ía n .) 9
Fragile, 3 3
F r a g i l i s , 3 2 , 3 3 , 3 4 , 3 5
Fragrane, 4 8
Germanicum, 7 1 3
Hyperborea, var. 3 0
Hyperboreum, 3 0
Ilvense, 3 0
I l v e n s is , 3 0
Irrigium, var. of var. 6 4
Lcetum, 63
L a n c e o l a t u m , 6 6
Latebrosum, 2 4
Lobatum, var. 3 9
Lonchitidoides, var. ofvar. 3 9
L o n c h it i s , 4 4
Lonchitis, var. 4 0 .
Lucidum, 68
L u n a r ia , 1 0 0
M a r in u m , 7 5
Murale, 71
Nemorale, 51
Odoriferum, 4 8
O f f ic in a r u m , (C e t e r .) 8 5
Officinarum, (S c o l o .) 8 2
Onocleoides, 1 8
O r e o p t e r i s , 4 8
Palustre, 4 6
Palustris, 4 6
P h e g o p t e r i s , 2 4
Pulchellum, 2 6
Pyxidiferum, 88
Ramosum, 78
Recurvum, 6 1
R e g a l i s , 9 7
Regia, 3 5
Regium, 3 5
Rhæticum, v a r . 6 3
R ig id a , 5 6
Rigidum, 5 6
R u t a m u r a r ia , 7 1 , 71 3
Saxatile, 8 0
Scolopendrium, 8 2
S e p t e n t r io n a l e , 7 3
S p e c io s u m , 8 8
S p ic a n t , 1 2
Spinulosum, 5 8
T h e l y p t e r i s , 4 6
T r ic h o m a n e s , 8 0
Trifidum, 3 5
T u n b r id g e n s e , 9 2
V ir id e , 7 8
V u l g ä r e , ( P o l y .) 2 0 , 2 2
V u l g ä r e , ( S co lo .) 8 2
V u l g a t u m , 1 0 3
WlLSONI, 9 4
The reference is to the figure : where more than one is given, the number of
references indicates the number of former species here treated as varieties ; thus,
three are included in A c u l e a t u m , four in D il a t a t a , & c. Names printed thus,
^‘ A c u l e a t u m ,” are retained as species; thus, Altemifolium, y a if’ are former
species treated as varieties; and thus, Alatumf' are synonymes.
ILLUSTRATIONS NOT EX PLAINED IN THE TEXT.
P a g e 5 7 . Pale’s Meeting House, Radnorshire.
6 9 . Llanthony Abbey.
7 2 . Leominster Buttercross.
7 4 . Conway Castle.
7 7 . Freshwater Bay, Isle of Wight.
7 9 . Cwm Idwel, Caernarvonshire.
8 4 . The Bull Inn, Birch Wood Corner.
9 1 . The Round Tower of Antrim.
9 3 . Wyckham Hatch, Kent.
S a d l e r , in his enumeration of true Ferns, assigns 1508 species
to the whole world, sixty-seven to Europe, and thirty-six to
Britain ; we have, therefore, but ^ part of the entire number.
Supposing that the 1508 species were arranged in the most unexceptionable
manner, all their characters carefully investigated,
and their position in some system fixed in strict accordance with
those characters, there still must exist many a gap between
species and species, or how could those numerous ferns still undiscovered
he hereafter admitted into the arrangement ? Granting,
then, the imperfection of any arrangement, however numerous
the species it may embrace, how can we hope to arrive at anything
approaching a continuous series, when our materials can
scarcely he supposed to reach ^ part of the entire number ?
How idle would it be to expect that in our mere handful of
Ferns, each should approach another by that gentle gradation
which would indicate the existence of a connected and harmonious
whole? Fully impressed with the difficulty of the case, I
am by no means disposed to complain of errors in the arrangements
of those authors who have preceded me, neither have I
any argument to adduce in favoirr of my own.
I t is curious to remark how each character by which Ferns
have been distinguished has yielded to a new and more precise
one. Sir J. E. Smith observes that Ray, Tournefort, Plumier,
A