APPENDIX. 
291 
Blechnum boreale. — T he first of the varieties 
mentioned at p. 80 is called heterophyllum, and the 
second multifurcatum. Besides, other variations of 
form occur. These are bifidum, with lobes split in 
two ; crispum, with end of frond tasseled; fissum, with 
stalk split in two or more divisions ; multifidum, with 
top lobes much divided; ramosum, fronds branched at 
the top and much crisped; serratum, with lobes scol¬ 
loped or broadly toothed; strictum, with lobes irre¬ 
gularly shortened; and trinervium, with fronds tri¬ 
foliate. In addition to which, there are aberrant, much 
differing; abruptum, ending abruptly; angustifrons, 
narrow-fronded; anomalum, anomalous; anomalum 
■minus ; apiculatum, sharp-pointed ; attenuatum, taper¬ 
ing; brevifrons, small-fronded; brevilobum, short-lobed; 
oaudatum, tailed; cladophorum, club-shaped; concin- 
mum, neat; condensum, crowded; contractum, narrowed; 
crassicaule (same as imbricatum) ; crispatum, curled ; 
mdspato-imbricatum, imbricately curled; crispum auri- 
**M», eared; crista-galli, cock’s-combed; cristatum, 
crested; deficient, defective; dentigerum, toothed ; 
divergent, diverging; erosum, jagged; flabellatum, 
fan-shaped ; furea turn, forked; gracile, graceful; im- 
brica/um, imbricate; imbricato-crectum, not closely 
'rubricate ; imparatum, unequal; inn quale, unequal; 
l mterrupturn, stopped; lancifolium, lance-leaved ; land- 
f°Uum anomalum-, latifrons, broad-fronded; latipes, 
''road-based; lineare, line-like; longidactylum, long- 
"ngered; majus, larger; marginato-irregulare, irre- 
V 2 
