Pail ame we Maes Be 
es Sor Be vin ate 
Ee 1804. Two New Ferns from New England. 493 
ness of that view: it is certainly very strange that those two 
species should be so accommodating as to intercross in so 
many widely separated stations under such varying condi- 
tions and always with such nearly similar results. Besides 
Ihave more than once found A. Boottii growing so far away 
from one or the other of its reputed parents as to almost pre- 
clude the possibility of contact. 
The fern which I here bring forward for the first time, 
however, was found growing under such conditions, and ex- : 
hibits such unmistakable characters, that there is every prob- 
ability in favor of its hybrid origin. Moreover the successful 
cultivation in my garden during the past year of plants trans- 
planted from their native habitation has enabled me to watc 
the growth and development of this fern so closely, and my 
convictions in regard.to it have become so strong, that I should 
Not now expect to find it growing anywhere in nature except 
in close proximity to Aspédium cristatum and A. marginale, 
whose combined characteristics it inherits. 
At the same time I recognize the possibility of parent forms 
dying out, or being exterminated from various causes, while 
_ 4 hybrid or varietal form might continue an independent ex- 
" istence; so that the absence of one or both parent forms 
from any given locality could not necessarily disprove hybrid- 
ity, though it might weaken evidence for It. 
I which I also publish here for 
n the case of the other fern whic ae yesesn 
Maine; but as there are other and stronger Fas. ae 
accepting that view I have preferred to consider it a 
inc : 
t species. o Prof. Daniel 
ds for investigation, 
te n considering the question of nomenclature the first to re- 
"4 the Swartzian generic names as Swartz was better to keep 
Uce fern genera to any kind of order, and it is 
37—Vol, XIX—No. 12. 
