I 12 
BEAUTIFUL FERNS. 
pear that Milde is right in making A. Boottii and A. remo~ 
turn both hybrids of A. spinulosum, the one with A. cristatum, 
the other with A. Filix-mas. 
For the form here described the specific name Boottii is 
several years older than uliginosum, for though the Aspidium 
spinulosum var. uliginosum of Braun was published in 1843, 
yet Milde positively asserts that the plant so named belongs 
to the true A. spinulosum, and in no way to Newman’s var, 
uliginosum, the date of which is somewhere between 1849 
and 1851. 
