in, Louisiana a fern, specimens of which I receive 
; ha 
Prof. Kunze on some Ferns of the United States. 
netilobula. I have specimens from the West Indies, (Ry- 
Tennessee ap North Carolina, (Rugel!) Lu collect 
~ herbarium, and which resembles very much D lobula ; 
but it has more acutely dentate segments, rhachis and veins be- 
low, sparsely covered with short hairs, very large sori without 
any trace of an indusium, which is still ea distinguishable 
even in fully mature specimens of D. pun tilobula. Xt is im- 
to decide about this plant ry examining younger 
ns, which I hope botanists of the. meiner United States 
will be induced to do, It may possibly be a. peculiar ? olype 
dium? Hp nite od s specimen in Willdenow’ s herbarium, is 
plainly D. punetilo 
Ororceree —C. Tan lis has ae sent ‘by Dr. Engelmann 
from Missouri, (rocks on the Merrimac Springs.). The specimens 
sent from from Labrador by Kurr and. Breutel,—from the Broad River , 
untains, North Carolina, by Rugel, —those from Pennsylvania 
and New England, seen by me, all belong to C. tenuis, Be 4 
which appears to be well distinguished from G. fragilis, and not 
a variety of it, as Hooker states; the distinguishing characters te- 
main constant in cultivation. C. bulbifera, Bernhardi, grows al- 
‘om any Rock, below the Warm Springs in North Bx 
uge. 
YMENOPHYLLUM.—I have not yet seen any North American 
specimens. 
_ [sotres.—Prof. A. Braun has published his investigations on 
this genus in Flora or Bot. Zeitung, 1846, No. 12.* I have only 
to add to this valuable paper, that J. lucustris has — co 
nicated to me by Mr. E. Tuckerman from’ New England. the 
mention made of an Isoétes from Galifornia, is based ona _Tais- 
not seen 
oer saeer aero 
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od ne 
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