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90 THE BEITISH FEKNS.
THE SEA SPLEEHWOET.
ASPLENIUM MARINUM.
A. fronds linear or linear-lanceolate, tapered above, pinnate;
pinnæ trapezoid-oblong, oblique, shortly stalked, the margin serrate
unequally crenate or lobate, rarely pinnatifid, the anterior base
truncate and sub-aurioulate, the posterior cuneate ; upper pinnæ
confluent ; sori large, oblique, near the midrib ; rachis and petiole
winged. [Plate LXXIII.]
A s p l e n iu m m a r in u m , lAnnoeiis, Sp. P lant. 1540. Bolkm, F il. Brit. 26, t. 15.
Smith, 'Eng. Bot. vi. t. 392 ; Id ., Eng. FI. 2 ed. iv. 294. Hooker, FI.
Land. iv. 57, t. 60. Deakin, Florigr. B rit. iv. 69, fig. 1692. Hooker é
A nw tt, Brit. FI. 7 ed. 688. Mackay, FI. Hib. 341. BaUngton, Man.
Brit. Bot. 4 ed. 426, Moore, Handb. Brit. Ferns, 3 ed. 177 ; Id ., Ferns o f
Gt. Brit. Nature Prirded, t. 38. Newman, Hist. B rit. Ferns, 3 ed. 235.
Bentham, Handh. B rit. FI. 632. Sowerby, Ferns o f G t B rit. BO, t. 29.
Schkuhr, K r y p t Gew. 64, t. 68 (exol. fig. c.) Willdenow, Sp. Plant, v, 318.
Sprengel, S y s t Teg. iv. 83. Presl, T e n t Pterid. 107. L in k , Fil. Sp. 93.
Mettenius, Fil. H o r t B o t Lips. 73 ; Id ., Asplen. 135. Fée, Gen. Fil. 190.
Heufter, Aspl. Eur. 14. Lowe, N a t H is t Ferns, v. t. 23. Nyma n , Syll.
FI. Europ. 432.
A s p l e n iu m læ t u m , H o r t Lowe, Nat. H is t Ferns, v. t. 21 A .
A s p l e n iu m t o v a e e n s e , H a r t
Var. trapeziforme: pinnæ shorter, trapezoid-ovate, the upper
base truncately-ronnded not auricled, toothed ; the lower ones
deflexed.
A s p l e n iu m m a r in u m , v . m in o r , Linky Fil. Sp. 93. Moore, In d e x Filicum, 144.
A s p l e n iu m m a r in u m , Schkuhr, Krypt. Gew., t. 68, fig. c.
A d ia n t u m t r a p e z i f o r m e , Hudson, FI. Ang. ii. 460, according to Smith,
Bolton, etc. ; b u t Hudson describes his p la n t as “ supradecompound.”
Var. assimile : pinnæ elongate, linear oblong, crenately auricled
and truncate at the base, narrowed upwards, deeply and distantly
lobed, the lobes directed forwards, crenately-toothed ; pinnæ sometimes
conspicuously auriculate.
A s p l e n iu m m a e in u m , v . a s s im il e , Moore, Ferns o f G t B r i t Nature Printed,
under t. 38 ; Id ., Handb. Brit. Ferns, 3 ed. 180 ; Id ., In d ex Fil. 144.
Var. acutum ; pinnæ elongate, linear oblong, auricled and truncate
at the base, narrowed to an acute point, crenate or crenately
sublobate, with sparingly toothed segments. [Plate LXXIV D.]
A s p l e n i u m m a r i n u m , v . a c u t u m , Moore, Ferns o f G t Brita in , Nature Printed,
u n d e r t . 38; Id ., Handb. B r i t Ferns, 3 e d . 179.
Var. incisum : pinnæ small, short, obliquely oblong-obtuse, with
a few coarse deep Isbes, the lobes obscurely toothed. [Plate
LXXIV A.]
A s p l e n i u m m a r i n u m , v . i n c i s u m , Moore, Handb. B r i t Ferns, 3 e d . 180.
Var. ramosum : pinnæ obliquely ovate or triangular, subhastate
below, sublobate or coarsely crenated, the crenatures obscurely
tootbed ; stipites usually two branched or united in pairs at or near
the base. [Plate LXXIII bis, B.]
A s p l e n i u m m a e in u m , v . r a m o s u m , Wollaston MS. Moore, P e n s o f Gt Britain,
Nature P n n ted , t. 38 H ; Id ., Handb. B r i t Ferns, 3 e d . 179.
Var. sub-bipinnatum: pinnæ obliquely ovate-lanoeolate, the
central ones almost again pinnate at their base, deeply pinnatifid
throughout; anterior basal lobes oval, acute, obscurely serrate.
[Plate LXXIV E.]
A s p l e n iu m m a r in u m , ®. s u b -b i p in n a t u m , Moore, Ferns o f f - B r n t a m Nature
Printed, u n d e r t. 38 ; Id ., Handb. BrU. Ferns, 3 e d . 177 ; I d ., Index
Filicum, 144.
Caudex tufted, erect or decumbent, densely scaly. Smles dark
brown, shining, striately venose, lanceolate, extending mto a long
hair-like point. Fibres branching, numerous.
Vernation circinate.
Stipes shorter than the frond, smooth, channelled m front, chestnut
coloured or purpKsh-brown; terminal and adherent to the
caudex. BacMs margined and more or less coloured brown below,
winged and green above.
Fronds averaging from six to twelve inches long, including the
stipites, sometimes shorter, occasionally longer, rarely upwards of a
yard long ; smooth, coriaceous, broadly linear tapenng to tho apex.
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