138 Scientific Intelligence. 
4, Species Filicum; by Sir W.J. Hooxer, parts XIII and XIV.— 
The progress of this important work has from time to time been noticed 
in this Journal, and it has now reached the middle of the fourth volume. 
neria, and able — species are sateebell of which the first, 
S, vulgare, grows commonly in Europe, and has been found in —_ 
but in the United States seems limited to _ station at Chittena 
Hemionitis from the south of Europe, S. pinnatum from the Philippine 
Islands, the two species of Anbigeocions Gon Brazil, Schaffneria from 
Mexico, our “ Walking Leaf” and its Siberian relative, make up the 
genus, which, thus constituted, is distinguished from the Asplene by 
having fo involuores arranged in pairs opposite to each other on con- 
lata, Desv., ha yhonym owing in ae all tropical 
ium sera 93 all the Ferns with orbicular and a in- 
volucres, and is d into sections Polystichum, with free veins, Cy- 
clodium, with sincdioaal venation, Cyrtomium, with Sialcte, ‘lightly 
united, and Huaspidium, with veins variously and compoundly anas- 
pe eg 8 For convenience of classification, in the Jast section is in- 
clude up of species having compounaly ae venation and 
s Sa, f All othe 
Mettenius, and much more reasonable than the multitudinous genera of 
Fée and — but the placing in Aspidiwm of species having the techni- 
cal characte of Nephrodium S (Sageas is aconfession that this division 
into two cn is not perfectly natural. Among the Aspidiee with an- 
osing venation it will always be difficult to separate the species wit 
reniform involucres from those with orbicular and _peltate inyolucres, 80 
closely are they otherwise related, and thus it seems more natural to 
make but one genus of sy acpi , as Dr. enuraiieg has _ 
(which includes a host of synonyms and varieties from all parts of the 
world,) and A. juglandifolium, the Phanerophlebia nobilis, Liebm., 
aoe occurs in New Mexico. Of these, A. acrostichoides and A. mun 
are exclusively American; the latter, from the North West coast 
ioe one of the handsomest of the whole genus. A frond of .A. muni- 
tum, well covered with fruit, i is one of the finest pave ever —_ emer herba- 
ria. Our species of Vephrodium are ten; WV. Thel 
—— (Asp. Ludovicianum, Kze, od vlads ook 
