Cheilanthes vestita, Willd. Cystopteris bulbifera, (L.) Bernh. 
a“ tomentosa, Link. Woodsia obtusa, (Willd.) Torr. — 
Pellwa atropurpurea, (L,) Link. Lygodium palmatum, L. 
Adiantum pedatum, L. Osmunda regalis, L. 
Camptosorus rhizophyllus, (L.) Link, Claytoniana, L. 
Asplenium filixz-femina, L. bad cinnamomea, L. 
4 thelypteroides. Mx. Botrychium Vis ginicum, (L.) Sw. 
‘* —_ angustifolium, Mx. = ternatum, Sw. 
“« — ebeneum, Ait. Ophioglossum vulgatum, L. 
‘* ruta-muraria, L. 
“  pinnatifidum, Nutt. 
«  —-montanum, Willd. . 
= Bradleyi, D. C. Eaton. Asplenium marinum, L. 
Dicksonia punctilobula, (Mx.) Knz. Woodwardia Virginica, (L ) Sm. 
. Aspidium Thelypteris, (L.) Sw. **  - -areolata, (L.) Moore. 
se Noveboracense, (L.) Sw. Schizea pusilla, Pursh, 
ve cristatum, (L.) Sw. 
Of the species in this division we remark that Onoclea sensibilis, 
though absent from Europe and most of Asia, appears in Manchuria 
and Japan. Iam not aware that it now occurs in the Western por- 
tion of our own continent, but it is a very interesting fact that it 
has been discovered in a fossil state in the eocene tertiary on the 
eastern border of Montana. Cheilanthes vestita is hardly tound 
north of 41 degrees extending southwesterly along the mountainous 
region to about 34 degrees. C. tomentosa seems to prevail along 
the western slope of the mountains, and reappears in the moun- 
tains of Arkansas and in the Rocky mountains. Pella atropur- 
purea stretches to the northwest even to Slave Lake and southwest. 
to the Ozark Mountains, and occurs sparingly in the Rocky Moun- 
tains. Our lovely Adiantum pedatum is. wanting in Europe, but 
appears in the Himalayas, in Manchuria and Japan, again in 
Alaska, thence along our western coast as far as Calitornia. Cam 
tosorus rhizophyllus is limited to this district, but an allied 
species without auricles, occurs rarely in Siberia. Asplenium filix- 
Jemina is almost a cosmopolite, but its fellow in the section 
Athyrium, (A. thelypteroides), occurs elsewhere only in Asia. As- 
plenium ebeneum is vather tropical in its relations, and extends into 
tropical America as far as Peru, and appears in the old world only in 
South Africa, Yet with us it extends north to about 45 degrees. As- 
plenium montanum is appropriately named, and is strictly Appal- 
achian. It has been observed as far north as Ulster Co.. N. Y.. ex- 
tending thence southwesterly to Alabama. Asplenium pinnatifi- 
dum is rare and local, and has been reported, so far as we know, 
only from Pennsylvania, North Carolina, Southern Illinois, Missou- 
ri, and Arkansas. It has been erroneously considered by some as a 
variety of Camptosorus rhizophyllus, but not only do the generic dis- 
tinctions hold which Hooker indicated; but its habit is entirely — 
different. Instead of running freely over the surface of rocks, — 
rooting in the moss which covers them, it grows deep in the re-_ 
treating crevices of precipitous cliffs, rootin g itself most tenaciously 
to the rock, and is rarely or never proliferous. Asplenium Bradleyi 
has as yet been seen only in East Tennesee and Kentucky (See Vol. 
IV. p. 11 et infra$3.) Aspidium Thelypteris is widesp1 ead in the. 
northern hemisphere, and less so in the southern, but its very near. = 
relative A. Voveboracense is strictly Appalachian. So also are the _ 
rest of the Aspidia of this division, except Aj eristatum, which 
7 
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