i l
TH E BRITISH FERNS.
crenately lobed. There is no truc lobing in the lower more distinct
pinnæ, tbe enlarged angle not being separated by a sinus from the
rest of tbe pinna, but tbe whole margin is toothed, and here and
there apioulately-toothed as in microdon, but not very distinctly so.
Tho sori are sbort, that is of the lanceolatum character, and usually
asplenioid, but here and there they become diplazioid or soolopendrioid.
The plant is an accidental seedling, which sprung up m the
fernery of Mr. Clapham of Scarborough.
3. laciniatum (W.). Tbe fronds of tbis variety are remarkably
depauperated, the leafy portion being more or less and in some oases
entirely wanting ; the pinnæ and pinnules are frequently reduced to
mere ribs or veins ; and the fructification, which is generally very
copious, protrudes on to the face of the frond, so that an inattentive
observer would not distinguish the front from the back. It is a
sub-permanent form, and occurs occasionally in the Channel Isles.
4. crispatim (M.). In this form, which is distinctly bipmnato,
the margins oi the lobes of the pinnules are so curled under as to
rive prominence to the tHokened teeth wHch from the same cause
L e irregular in their direction; the pinnules thus acquire a somewhat
crispy character. It was sent from Guernsey by Mr. C.
Jackson.
THE BLACK MAIDENHAIR SPLEENWORT.
ASPLENIUM ADIANTUM-NIGRUM.
A. fronds ovate or deltoid, acute or acumiuate, glabrous, sub-
coriaceous, bi-tri-pinnate ; pinnæ obliquely triangular, acute or
acuminate ; pinnules ovate or ovate-elongate-attenuate, pinnate or
pinnatifid, the ultimate divisions oblong, or subtrapezoid, cuneate at
the base, shallowly lobod with the lobes toothed or simply toothed;
teeth acute ; sori linear-elongate, contiguous to the midvem. [Plate
■LXX.]
A s p l e n iu m A d ia n t u m -n ig b u m , L imu em, Sp. Plant. 1 5 4 1 . Bolton, Fil. Brit.
3 0 t 1 7 , fig . 1 -3 . Smith, Eng. Bot. x x v i i i. t . 1 9 5 0 ; Id ., Eng. FI. 2 ed. i t .
2 9 7 (e x o l. S). Deakin, Florigr. BrU. iv . 6 4 , fig . 1 5 9 0 . Bentham, Handh
B r it FI. 6 3 3 . Hooker & Arnott, Brit. FI. 7 e d . 6 8 9 . Mackaxj, FI. Hib.
3 4 2 . BaUngton, Man. Brit. Bot. 4 e d . 4 2 6 . Moore, Handh. Brit. Ferns,
3 ed. 170 ; Id ., Ferns o f Gt. Brit. Nature Printed, t. 36, fig. A, B, Newman,
Hist. Bril. Ferns, 3 ed. 225. Sowerhy, Ferns o f Gt. Brit. 49, t. 28. Schkuhr,
Krypt. Gew. 74, t. 80 a. Swartz, Syn. Fil. 84. Lamarck, Em;. Bot. ii. 309.
Willdenow, Sp. Plant, v . 346. S a d k r , Fil. Hung. 31 Sprengel, Syst. Veg.
IT 89 (excl. syn. Willd.). Fresl, Tent. Pterid. 107. L in k , Fil. Sp. 96.
Fée Gen. Fil. 191. Sturm, Deutschl. FI. (Fam.) t 3. Koch, Synopsis 2 ed.
982 Fries, Sum. Veg. 82. Ledebour, FI. Boss. iv . 519. Mettenius, Fit.
Hart. Bot. U p s. 77 ; Id ., Asplen. 144. Lowe, Nat. Hist. Ferns, v. t, 25.
Heu fk r, Asplen. Europ. 66, 76. Pappe & Bawson, Syn. Fil. A fr . Aust. 21.
Nyman, Syll. FI. Europ. 432.
A s p l e n iu m A e ia n t u m -n ig e u m , ®. c a p e n s e , Sehlechtendal, Adumbratumes
P lant. 31, t, 17. t \
A s p l e n i u m A d i a n t u m -l a n o e o l a t u m , Hoffmann, Deutschl. FI. i i . 12 ( e x c l . s y n . )
A s p l e n iu m NIGEUM, / om™ . RoL 1 7 9 9 , 1. 3 1 3 .
A s p l e n iu m t e ic h o m a n o id e s , LumnUzer, FI. Poson. no. 1020, according to
Sadler.
A s p l e n iu m l u c id u m , Salisbury, Prod. 403.
A s p l e n iu m O n o p t e e is , i i w a n i s , S p . P 7M Î . 1 ed. 1 0 8 1 . , „ ,
A s p l e n iu m o u n e ie o l iu m , Viuiani, PI. Ited. fra g . 16 , t. 18 , according to Presl
A s p l e n iu m a e g u t u m , Kaulfuss, Enum. F il. 1 7 6 . Sprengel, Syst. Veg. iv . 9 0 .
Presl, Tent. Pterid. 107. Fée, Gen. Fil. 191.
A s p l e n iu m h u m il e , Blume, Enum. Fil. la v . 1 8 5 .
A s p l e n iu m H e u f e e l l i , Würzb. Hb. Kze.
A s p l e n iu m s il e s ia c u m , Milde, Jahr. Schles. Ges. Vol. Cult. 1 8 5 5 , 3 3 ; Id ., Nov.
A r f. iV. (7. x x v i . p a r t i i , 6 0 5 , t . 1 1 4 -1 1 5 . ,
A s p l e n iu m t a b u l a e e , Schrader, Gotting. gel. Anzeig. 1 8 1 8 , 9 1 6 , a c c o r d in g o
K u n z e .
A s p l e n iu m c a p e n s e , Linncexis M S., in Herb.
P h y l l it is l a n c if o l ia , Mceneh, Math. Su p p . 3 1 6 .
T a e a c h ia A d ia n t u m -n ig e u m , Presl, Epim. Bot. 82.
T a e a c h ia a e g u t a , Presl, Epim. Bot. 82.
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