THE SOFT PRICKLY SHIELD FERN. 135 
Var. imbricatum: fronds  linear-lanceolate; pinne short, 
bluntish; pinnules roundish or oblong, obtuse, bristle-tipped, imbri- 
cated ; rachis proliferous below. [Plate XXI.] 
POLYSTICHUM ANGULARE, v. IMBRICATUM, Moore, Ferns of Gt. Brit. Nature 
Printed, t. 12 E; Id., Handb. Brit. Ferns, 3 ed. 85. 
Var. rotundatum: fronds narrow lanceolate ; pinnæ short, blunt; 
pinnules few, round or roundish-oblong, obscurely crenate or sub- 
entire, flat. 
Var. alatum: fronds lanceolate; pinnules decurrent with the 
winged secondary rachides, their teeth rounded, and bristle-pointed. 
[Plate XXII. | 
POLYSTICHUM ANGULARE, v. ALATUM, Moore, Ferns of Gt. Brit. Nature Printed, 
t. 10 C, in expl. (aculeatum on plate) ; and under t. 12; Id., Handb. Brit. 
Ferns, 3 ed. 86. 
POLYSTICHUM ACULEATUM, v. ALATUM, Moore, Handb. Brit. Ferns, 2 ed. 86. 
Var. confluens: fronds bipinnate below ; pinnules narrow, the 
perfect ones linear acute, with an auricle, but the majority more 
or less depauperated, often cuneate, the upper ones confluent into a 
linear lobato-serrate apex; upper pinne linear-falcate auricled, 
serrate. [Plate XXVI.] 
POLYSTICHUM ANGULARE, v. CONFLUENS, Moore, Handb. Brit. Ferns, 3 ed. 94. 
Var. gracile: fronds ovate-caudate, bipinnate, lax ; pinnules 
narrow oblong or linear, acute, scarcely auricled, distinct, inciso- 
serrate. [Plate XXV B.] 
Var. grandidens: fronds bipinnate, narrow lanceolate, the pinnee 
irregularly abbreviated, often terminating in an abrupt flabellately- 
lobate apex; pinnules short, very coarsely ineiso-dentate, the teeth 
subulate. [Plate XXV A.] 
POLYSTICHUM ANGULARE, V. GRANDIDENS, Moore, Handb. Brit. Ferns, 3 ed. 94. 
Var. plumosum : fronds ovate-lanceolate, thin chartaceous, 
bipinnate ; pinnules long stalked, deeply inciso-lobate, the lowest 
auriculiform lobe distant almost stalked lobed or biserrate ; the lobes 
all acutely aristate-serrate. [Plate XX F.] 
POLYSTICHUM ANGULARE, v. PLUMOSUM, Moore, Handb. Brit. Ferns, 3 
u nen ge te 

