274 
New Zealand Ferns 
An extremely handsome species; the conspicuous 
scales making - a fine contrast to the dark-green leaves. 
It is easily cultivated, and makes a welcome addition to 
the fernery. The species varies greatly in the size, shape, 
and texture of the fronds, and in many other respects. 
The fronds are sometimes forked or crested at the tip, 
and are sometimes proliferous. 
A. aculcatum, in some of its forms, is found in almost 
all parts of the world. The English type is known as the 
“Narrow Prickly Shield Fern.” The New Zealand va- 
riety, mainly distinguished by the dark-coloured scales 
covering stalk and midrib, is also found in Australia, 
Tasmania, and Fuegia. 
( 107 ) Var. sylvaticum (sylvan). Smaller and much 
more slender. Fronds few, 12 to 24 inches long, includ- 
ing the stalks, less firm in texture and of a lighter green; 
the covering of the seeds not developed. 
Note . — I have not included A. mohriodes, which has 
only once been reported from the Auckland Islands. 
