Botany. ABS 
the lower Alge (p. 115); and also of the recent discoveries respecting 
the bisexual reproduction of the higher Cryptogamia. The reprint of 
enfrey’s Report, in the January and March numbers of this Journal, 
has placed our readers au courant with the present state of know wledge 
on this interesting subject. It should be noticed that Mohl denies the 
existence of antheridia in lower Cr ryptogamia, ti Thallophytes; but 
maintains that the small bodies, moving by two cilia, discovered by De- 
caisue and ‘Thuret in the Fucacem, are more properly a second kind of 
Spores, analogous to the small spores of the Floridee, of the 
Hature of the seminal filaments of Ferns, Mosses, &c. (p. 117.) The 
later researches of Itzigsohn, Thuret, Tulasne, &c., however, lead rather 
fo the conclusion that the lower Cryptogamia (except the very lowest) 
are likewise bisexual.* 
Itzigsohn, in Botanische Zeitung, May, 1850.—Here it is announced that the 
Hack dots on the surface of the frond of sede rrera ciliaris eae Dees that is, 
from which escape animalcular-like corpuscles that m ely in water, 
pom similar to those of Mosses and Liverworts. ter ater a ge t others 
had failed to detect these movements, he announces that they had. be 
Rabenhorst, after many ineffectual trials. He also (Dee. he Feb. ny states 
t these “spermatozoids” do not ingen vital movements until after the macera 
a 
e (DL. R.), Mé " 
2 rp Lchedae.: in Ann. Sciences Netnration ois ser., xviil, No. 1, 2, 3, 4, ones 
: 6 plates—A most admirable and complete memoir, elucid in in an unequal- 
led Giaee the whole structure and morphology of the Lichenes.. It is to be hoped 
that the author will publish it in a separate form; as it ten oy a new era in 
y. at ee — of the so-called Antheridia (which alone we can 
here notre, recognized the universal occurrence of these bodies in 
seca sry thei pasted and developments but aN has never a 
any free movement of the uscles, except general molecular or Brown 
Motion, common to all riilete particles. Fes therefore’ to See to the oo called ae 
theridia the name of abe 4 and t np Se corpuscles the name of 
fa. He uuhesi tingly” reognines in deme seer raya 
—— at least in funetion, to those 9 sed sA 
bs iat eg is ally motionless, and of a fam tae and there joe probably 
ng male organs likewise @ athena to the fa t these 
dak tat ‘abrercles “ "had were particulary wel ey Dillenius, more iy a century 
in Borrera essed 
and tha ghd in 1784, expre: the opinion that they 
fonstituted the male apparatus i 
Decaisne & sate apart af ie sur les Antilles et les Spores de quelques Fu- 
ous; in A , ili, p. 5—Here the corpuscles known to the earlier 
ovement 1s 
dicas et les Antheridie des Erypesgonses. 
the Aca nT corona a ~~ 
: esearches com! : vie et eopioits 
Were rewarded by t t prize for natural sciences, 
has bee published pad aged a Sei. Nat., 3rd ser., xiv, oe on crass, 1851 > mie 
m 
h the same functio ‘ those which the i ents of the 
Samia fulfill. The Antheridia of Chara (in which Thuret first di red t 
Whose vibration ents aré moved), m8 the Liverworts, eee 
facts mentioned : Re 
Laveillt, in aan an Nok ae ye. p. 119, as indicated the probable exist 
of antheridia in in Fungi. - 
