Botany and Zoology. 159 
dew. An 1 ample explanation of pig onion is given in the twenty- 
four pages of introduction, where one may look in vain for 
by Cohn and Sachs, and set forth in Professor Bessey’s ‘** Botany 
for High Schools and Co olleges.” It is certainly pleasant to the 
of his of Algze to be relieved from havi ing to consider the objects 
ance of Harvey’s Vereis, He one conspicuous red wie has one 
duectaens on ne coast and that one is Nemastoma Bairdii, of 
which Professor Farlow found but a solitary specimen at Gay 
Head in 1871. The principal changes in nomenclature among the 
Floridew are the substitution of Rhabdonia tenera for Solieria 
chordalis, of Rhodophyllis Veprecula Fa Calliblepharis ciliata, 
and of Griffithsia Bornetiana for G. corallina, odomela 
gracilis and R. Rochei are reduced to Peo of R. neklowa and 
Polysiphonia freien to P. urceolata. Harvey knew certainly of 
no Coralline on the New England coast. But C Brailes "ofekevalie 
two or three added species of weus, and F! nodosus is excluded 
from the genus, to become Ascophyllum AB Sargassum 
Montagne is very pr tee retired. Among the great Laminariw 
are some char 
principally in the es of the hold-fast and in the presence of cryp- 
tostomata, L, LIRA is Fees . saccharina and L, digituta 
retained, though with so apparent hesitation, L. ongicruris 
fully recognized, and L. Ties oried to the genus Phyllitis in 
Seytoriphoniew. 
ere are several changes among the filamentous Chlorosporew, 
and still more that is new (to Americans at least) among the 
atoms and ae are pe treated of in this work 
een plates at the end of the volume are mainly illustra- 
tive of 8 different kinds of fructification seen in Algw, and add 
much to the ease with which one may comprehend the principles 
of classification here st orth, 
It is to be hoped that the able botanist who has given us this 
most important contribution to the history of Nor th American 
