. Botany and Zoology. 133 
phyllu m, Kunze, var. myriophyllum. Tt is undoubtedly through some 
gadiata, Link., of a wider range, follows next to Asplentum, The usual 
Index concludes the volume. ‘The distinguished i te is now fertg 
the Aspidioid Ferns, which, we trust, will in due time spre the 
one. volume. . On: 
Uber einige Farngattungen ; von Dr. G. Metrenivs Profheick a 
oe Univ ersitit zu Leipzig. Frankfort-o n-Main. Heinr. Ludw. Bronner, 
1857-9, 3 vols. 4to.—The first contalbation (I.) contains an essay of six- 
teen pages on the classification of Ferns, which being in German is not 
accessible to the majority of those whom it would naturally interest and 
doubtless enlighten. The learned author carefully considers the subject 
of the venation of Ferns, and after studying it more deeply, perhaps, 
monograph of the genus Polypodium, in 121 pages, in which 268 species 
_ are recognized, many of them described and illustrated by references to 
the numbers of distributed ee =e often by fragmentary but care- 
_ ful sketches of the venation, in three crowded Sitiaaaphde plates. There 
are also tf the names of a anaied or more dubious or imperfectly 
nown species. In the index the names of not less than fifty genera of 
_—-Yarious coors are given a onymous with parts of Polypodium 
__ The species are classified mainly according to the venation and the shape 
The second part (pp. 158, tab. 4 ), contains (II.) a aaa of Pla- 
ogyria, a new genus of six species, (since reduced to Lomaria 
Hooker) (III.) a notice and figure of i ves calaris, Moritz, feos Vene- 
uela, showing a donble involuere, similar to that known to exist in Pt. 
agstina and its allies, and ee an able monograph of Phegopteris 
and Aspidium, treating these a in the same way as Po lypodium 1 in 
the first article. Of Aspidium sets are given forty-seven generic syno- 
nyms, excluding such universally adopted genera as Asplenium, Poly- 
podiu oodsia, &e., to which some species have been incorrectly 
ferred. The admitted species number et rage and thirty, and thie 
are perhaps half as many more doubtful o 
anthes, and (VL) As splenium, two hundred and forty-nine a i 
bar a — being TeCO: 
series of sel ca comprehensive treatises “ n- 
i Peeves Motienivas has followed out — and early the 
prine is he laid d 
m portance of conor ete., botanists may have, “all must aac 
to be writing a consistency as well as ability not often met with. In the 
identifica On at pene Seaton Ane st ianshe large eed 
* 
The third part (pp. 210, tab 6,) treats in a eabiullat way of (V.) het 
