THE HARTSTONGUE, 
141 
S. V. muricatum (prickly). N'arrow, thick fronds, with 
surface like a coarse file. 
S. V. mur. inequale (unequal), Jones. Same as last, but 
crested like a green cockscomb. 
S. V. Malcolmsonii (Malcolmson’s). One of the finest 
heavily crested forms. 
S. V. peraferens (pocket-bearing) (3). A most curious sport. 
Fronds normal for an inch or so from the bottom, abruptly con- 
cluding with a frilled pocket, the midrib projecting like a thorn. 
S. V. polycuspis uudosum (many-cusped, waved). Fronds 
variously branched, and sometimes twisted, ending in numerous 
sharp points. 
