” 5 8 ees 
Cas Pind. 
84 Prof. Kunze on some Ferns of the United States. 
and Kurr,;) New England mountains, sterile: eo ale 
e highest tops of the Black Mountains, North Caroli 
Cultivated specimens have been communica cated 
from the botanical garden of St. Petersburg, (Dr. Fischer as Ae 
spinulosum americanum,) and from that of Berlin. The lowest 
of the mostly opposite pinne is ascending and curved up- 
poe and has:a different direction from the pois pinne. The 
mntile are more deeply pinnatified, with more and sharper teeth 
in the common form ; those of the lowest pinne, especially 
near the base, are much elongate d downwards, by which these 
pinne assume a very irregularly fiero shape. The sori are 
nearer the middle caer The stipe is thickly covered with‘ 
brown or redish pale. If this ‘form: should eventually prove to 
be a distinet ae: ty name of A. campylopterum would be 
appropriate.—A. (Polystichum) Lonchitis, Sw., also in Green- 
eee (Wormskiold) *—A.(P.) aculeatwm, to which Hooker (Ft. 
1,) joins even A. vestitum, Sw., though undoubt- 
eal ee ai and Nephrodiwm setigerum, Presl, which T do 
G know, appears to include different species, which I the 
ought to be separated. But Hooker states that the plant of ‘the 
Rocky Mountains and the Pacific coast is intermediate between 
A. lobatum and A. angulare, and is identical with A. aculeatum 
of his British flora. All the American specimens which I have 
seen were communicated by Mr. E. Tuckerman, as collected on 
the mountains of New England. ‘They evidently belong» to A. 
(P.) Braunii, Spenn. Fl. Fribi, which, therefore, is also’ an 
American plant. The different species whieh usually have been 
confounded under the name of A. aculeatum have been elucida- 
_ “ted by me in a memoir, which is not yet published. I have thus 
far fing" A. Prd poe only from Baden‘and Saxony, and from New 
England. Prof. Braun states that it has also been ph in Nor- 
way: it ‘is cultivated in the botanical gardens f Leipzig and 
Berlin.—I have to add here a new and well I distinguished species 
of the United States. 
A. (Polystichum) Ludovicianum, Kun : fronde ner ‘co- 
riacea, glabra, oblongo-lanceolata, Sifcapeens pinnis (alternis) re~ 
motis, oblongo-acuminatis, patenti-erectis a imenaost setioleds ’ 
nulis basi adnatis decurrentibus, sterilibus ovato-oblongis 
acutiusculis serrulatis subsinuatis, fertilibus e basi inequali sub- 
auriculata leviter falcatis laneeolato-oblongis: grosse sinuato-den- — 
tatis, infimis pinnatifidis, laciniis dentibusque 1-raro- 2-sorophoris, 
obtusis ; costulis subtus convexis ; soris Magnis, convexis, centro 
ab indusio badio leviter impressis ; rhachibus — —— 
pee universali stipiteque stramineis, rufo-paleace 
In Louisiana legit Ludwig (Herb. Pocdeninn wx Colitar in 
horte botanico Berolinensi (vid. specymen ie 
nV Pee 
* It likewise occurs on the shores of Lake Hi ~—A. Gr. 
