THE BROAD PRICKLY-TOOTHED BUCKLER FERN. 225 
Var. angusta: fronds linear-lanceolate bipinnate; pinnee short 
deltoid, the anterior and posterior pinnules of the lower pinne very 
unequal; scales of the stipes narrow-lanceolate, pale-brown, two- 
coloured, pallid ; indusia indistinctly glandular. 
LASTREA DILATATA, v. ANGUSTA, Moore, Handb. Brit. Ferns, 2 ed. 124; 3 ed. 
126; Id., Ferns of Gt. Brit. Nature Printed, under t. 22. 
Var. alpina: fronds narrow, linear-lanceolate, membranaceous, 
bi-subtri-pinnate ; pinnee unequally deltoid; scales of the stipes 
broad-lanceolate, pale-brown, whole-coloured or variously two- 
coloured ; sori large, with small fugacious ragged glandular indusia. 
LASTREA DILATATA, V. ALPINA, Moore, Ferns of Gt. Brit. Nature Printed, under 
t. 22; Id., Handb. Brit. Ferns, 3 ed. 126. 
Var. nana: fronds dwarf, ovate, bipinnate, somewhat glandular ; 
pinnules decurrent, convex ; scales of the stipes dark-centred ; indusia 
small fugacious, the margin slightly glandular. [Plate XLVI.] 
LASTREA DILATATA, v. NANA, Moore, Handb. Brit. Ferns, 2 ed. 97: 38ed. 1258; 
Id., Ferns of Gt. Brit. Nature Printed, t. 26 C--D. 
LASTREA MULTIFLORA, v. NANA, Newman, Hist. Brit. Ferns, 2 ed. 222; 3 ed. 
153. Deakin, Florigr. Brit. iv. 114. 
LoPHODIUM MULTIFLORUM, v. NANUM, Newman, Hist. Brit. Ferns, 3 ed. 153. 
Var. tanacetifolia: fronds ample, triangular or sub-triangular- 
ovate, tri-quadri-pinnate ; scales of the stipes dark-centred ; indusia 
small, the margin irregular, slightly glandular. 
LASTREA DILATATA, V. TANACETIFOLIA, Moore, Handb. Brit. Ferns, 3 ed. 124 ; 
Id., Ferns of Gt. Brit. Nature Printed, under t. 22. 
LASTREA DILATATA, B., Moore, Handb. Brit. Ferns, ed. 1, 59. 
LASTREA MULTIFLORA, B. DILATATA, Deakin, Florigr. Brit. iv. 113, 116, fig. a. 
ASPIDIUM DILATATUM, Willdenow, Sp. Plant. v. 263. Sprengel, Syst. Veg. 106. 
ASPIDIUM SPINULOSUM, Schkuhr, Krypt. Gew. 48, t. 47 (excl. G) 
ASPIDIUM SPINULOSUM, B., Hooker de Arnott, Brit. Fl. 7 ed. 586 (excl. syn. 8m. 
and Newm.) 
ASPIDIUM EROSUM, Schkuhr, Krypt. Gew. 46, t. 45 (monstrous). 
POLYPODIUM TANACETIFOLIUM, Hoffmann, Deutschl. Fl. ii. 8. 
POLYSTICHUM TANACETIFOLIUM, De Candolle, Fl. Frang. ii. 562; according to 
specimen from Prof. Fée. 
POLYPODIUM ARISTATUM, Villars, Hist. des Pl. Dauph. iii. 844. 
Var. lepidota : fronds short broadly-ovate, quadripinnate ; ultimate 
pinnules small, distinct, pinnatifid and spiny-toothed ; stipites and 
VOL. I. Q 

