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1 0 2 • THE BRITISH FERNS.
THE COMMON MAIDENHAIR SPLEENWORT.
ASPLENIUM TRICHOMANES.
A. fronds linear pinnate ; pinnæ roundisli-oblong, ronndish-ovate,
or obovate, scarcely stalked, obliquely cuneate at tbe base, crenated;
racbis dark brown tbrongbout, bluntly keeled behind, and having
a narrow erect membranaceous (not herbaceous) brown border in
front; sori distant from the midrib. [Plate LXXY.]
A s p l e n iu m T k ic h o m a n e s , Linnæits, Sp. Plant. 1540. Bolton, Fil. Brit. 22,
t . 13. Smith, Eng. Bot. viii. t . 567 ; Id ., Eng. FI. 2 e d . iv. 202. Hooker,
FI. lo n d . v. 150, t . 156. BaUngton, Man. Brit. Bot. 4 e d . 426, iucLA.
Bentham, Handh. B rit. FI. 632 (excl. A . viride). Hooker tO Am o it, Brit.
FI. 7 e d . 588. Newman, Hist. Brit. Ferns, 3 e d . 249. Mackay, FI. Hih. 341.
Deakin, Florigr. Brit. iv. 73, fig. 1594. Moore, Handh. Brit. Ferns, 3 ed. 181 ;
I d ., Ferns o f Gt. B rit. Natnre Printed, t . 39 ; Id . In d . Fil. 173. Sowerhy, Ferns
o f Gt. Brit. 52, t . 30. Schkuhi', Krypt. Gew. 69, t . 74. Willdenow, Sp. Plant.
v. 331. Sprengel, Syst. Veg. iv. 85. l i n k , Fil. Sp. 89. Flora Danica, t .
119. Svensk Bot. t , 131. Sadler. Fil. Hung. 25. Koch, Syn. 2 e d . 982.
Fries, Su7n. Veg. 82. Icdehour, FI. Boss. iv. 521. Presl, Tent. Pterid. 108.
Fée, Gen. Fil. 190. A . Gray, Bot. North. UniUd States, 627. Mettenius,
F il. Hort. Bot. lip s . 72; Id ., Asplen. 138. lowe , Nat. Hist. Ferns, v. t. 22.
Ileufier, Aspl. Europ. 34. Nyma n , Syll. FI. Europ. 432. Pappe cO Bawson,
Syn. Fil. A fr . Aust. 19.
A s p l e n iu m A d ia n t u m -n ig k u m , lum n itz , FI. Poson. 1020 ; according to Sadler.
A s p l e n iu m d ic h r o u m , K u n ze ’MS. Presl, Tent. Pier. 108.
A s p l e n iu m e l a c h o p h y l l u m , F. Mueller MS. in lit. et Hb.
A s p l e n iu m m e l a n o g a u l o n , Willdenow, Enum. 1072; Id ., Sp. Plant, v . 3 3 2 .
Sprengel, Syst. Veg. iv. 86. Presl, Tent. Pterid. 108. l i n k , Fil. Sp. 90.
Fée, Gen. Fil. 192.
A s p l e n iu m m ic e o p h y l l u m , Thuo, Guss. FI. Sic. Syn. 8 8 4 .
A s p l e n iu m N e w m a n i , C. Bolle, Bonplandia, vii. 106.
A s p l e n iu m s a x a t il e , Salisbury, Prod. 403. Gray, Nat. Arrang. BrU. PL ii. 13.
A s p l e n iu m t e ic h o m a n o id e s , Weber and Mohr, Deutschl. Krypt. Gew. 40.
Withering, Bot. Arrang. Veg. 653. lightfoot, FI. Scot. 662.
r T e ic h om a n em c e e n a t a , Gilibcrt, Exerc. Phytol. ii. 556.
P h y l l i t is e o t u n d if o l ia , Mcench, Method. 724.
Var. incisum; pinnæ deeply pinnatifid, tbe segments narrow,
inciso-serrate ; barren. [Plate LXXYI his, A.]
A s p l e n iu m T r ic h o m a n e s , r. in c is u m , Moore, Fcims o f Gt. Brit. Nature Printed,
t. 39, D, E. ; Id ., Handh. Brit. Ferns, 3 e d . 181.
A s p l e n iu m T e ic h o m a n e s , /8, Smith, Eng. FI. 2 e d . iv . 292.
A s p l e n i u m T r i c h o m a n e s , v . p i n n a t i f i d u m , Opiiz; a c c o rd in g t o Heufler.
A s p l e n i u m s a x a t i l e , jS. i n c i s u m , Gray, Nat. Arrang. Brit. PI. i i. 13.
Var. subæquaîe ; pinnæ oblong, deeply and irregularly crenate,
sometimes repand or sinuate, attached at or near the centre of the
subcqual base. [Plate LXXVI B.]
A s p l e n i u m T e i c h o m a n e s , v . s u b æ q u a l e , M om , P e n s o f Gt. Brit. Nature
Printed, u n d er t . 39 ; Id ., H a n d i. Brit. P e n s , 3 ed. 184.
Var. cristatum; fronds symmetrically multifid-crisped at the
apex, not ramosely-divided below. [Plate LXXVI his, D.]
A s p l e n i u m T e i c h o m a n e s , v . c e i s t a t u m , Wollaskm MS. Moore, P e n s o f Gt.
B rit. Nature Printed, t. 39 H. ; Id ., Handb. Brit. P e n s , 3 ed. 183.
Var. multifidum: fronds hi-tri-chotomously divided below, the
apices of the branches multifid-crisped. [Plate LXXVI his, B.]
A s p l e n i u m T e i c h o m a n e s , v . m u l t i f i d u m , Moore, P e n s o f Gt. Brit. Nature
Printed, t. 39 G. ; Id ., Handh. Brit. F e n s , 3 ed. 183.
Var. ramosum: fronds bi-tri-chotomously divided below, the
branches flat normally taper-pointed. [Plate LXXVI his, C.]
A s p l e n i u m T e i c h o m a n e s , v . e a m o s u m , Wollaston, MS. Moore, Ferns o f Gt.
Brit. Nature Printed, t. 39 E. ; Id ., Handb. Brit. Perns, 3 ed. 183.
Caudex short, tufted, scaly, erect or decumbent. Scahs lanceolate,
brown, oeUular, often with a dark central stripe. Fibres wiry,
branching.
Vernation circinate.
Stipes short, smooth, ohestnnt-coloured or dark purple-brown,
rounded behind, flat in front, with a raised line on the face at each
angle ; terminal and adherent to the rhizome. Baehis, also dark
chestnut-brown thronghont, keeled and rounded behind, flat in front,
and there furnished with a narrow erect membranaceous ooncolorous
wing-like border.
Fronds two or three inches to twelve or fourteen inches long,
linear, pinnate. Pinnæ thick, herbaceous, deep green, numerous,
variable in shape, but mostly roundish-oblong, obtuse at tbe apex,
and obliquely cuneate at the base, scarcely stalked, but attached to
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