






124 THE BRITISH FERNS. 
ASPIDIUM LOBATUM, Swartz, Schrad. Journ. Bot. 1800, ii. 37; Id., Syn. Fil. 
53. Smith, Fl. Brit. 1123 ; Id., Eng. Bot. xxii. t. 1563 ; Id., Eng. Fl. 2 ed. 
iv. 278. -Hooker d Arnott, Brit. Fl. 7 ed. 583. Mackay, Fl. Hib. 338. 
Willdenow, Sp. Plant. v. 260. Tenore, Att. Accad. R. Inst. Sc. Nat. Nap. v. 
(reprint 24, t. 2, fig. 6). 
ASPIDIUM LOBATUM, f. LONCHITIDOIDES, Hooker & Arnott, Brit. Fl. 7 ed. 583. 
ASPIDIUM ACULEATUM, Schkuhr, Krypt. Gew. 41, t. 89. Lowe, Nat. Hist, Ferns, 
visata 10: 
ASPIDIUM PLUKENETII, Steudel, Nom. Bot. ii. 64. 
ASPIDIUM INTERMEDIUM, Sadler, Adwmb. Epiphyll. Hung. 16. 
ASPIDIUM MUNITUM, Sadler, Fil. Hung. 54; not of Kaulfuss. 
POLYPODIUM LOBATUM, Hudson, Fl. Ang. 459. 
PoLYPODIUM ACULEATUM, Bolton, Fil. Brit. 48, t. 26. 
POLYPODIUM PLUKENETIL, Loiselewr, Not. 146. 
Var. argutum : fronds lanceolate ; pinnules distinct, long, narrow, 
i. e. linear acute, auricled, sharply spine-toothed. [Plate XVII B.] 
PoLYSTICHUM ACULEATUM, v. ARGUTUM, Moore, Ferns of Gt. Brit. Nature 
Printed, t. 10 B ; Id., Hondb. Brit. Ferns, 8 ed. 82. 
Var. cristatum: fronds lanceolate, tapered to the point; pinne 
somewhat dilated and crispy at their apices, the upper ones con- 
fluent; pinnules oblong acute, auricled. l 

Caudex thick, tufted, erect or decumbent, becoming woody in 
age, consisting of the bases of decayed fronds closely surrounding a 
woody axis, slowly elongating, in the upper part scaly. Scales broad 
ovate-lanceolate, numerous, dark fuscous. Fibres long, coarse, tor- 
tuous, branched, dark brown, tomentose. 
Vernation circinate, the main rachis becoming recurved before 
the unfolding of the frond is completed; the pinnæ convolute 
towards the main rachis. 
Stipes short, three to four inches long, densely scaly with broad 
_ovate-lanceolate chaffy fuscous scales ; terminal and adherent to the 
caudex. Rachis stout, rounded behind, channelled in front, densely 
scaly, the scales less numerous and hair-like above, more numerous 
and intermixed with broader ones below, gradually merging in size 
with those of the stipes. 
Fronds from one to three feet high, and from four to seven inches 
across, rigid, leathery, smooth and dark-green above, paler beneath, 

