402 Scientific Intelligence. 
eee baht Pteris Cretica in the distribution of antheridia 
chegonia, “Aes in Aspidium faleatum archegonia occurred 
in at a 25 or 30 per cent of the sie Although in the 
Bary t 
The buddi 
tion ea a ie eta on the under surface of the © protballus, from 
rst leaf, root, and stem-bud, as in the normal 
embryo formation, although their relative position and date of de- 
chet “oe varies. The protuberance is generally found just back 
of the sinus, where the fertilized archegonium normally occurs. 
Variations were seen in which the first leaf grew from the upper 
surface of the prothallus and, at times, two leaves were pops: 
one on the upper and one on ’ the lower Surface. Secondary form 
ularly with one another, we must consider that: "instead of having 
acquired a new power, the ferns which reproduce by budding 
anit | isa gdod ix instance of apandry with gener se 
n unfertilized 
at The female of this species is alone sinsivai in northern 
tei tse it fruits abundantl y- _It has been a by De 
wile To the same cate belong some of the mosses usually 
called sterile, that is, destitute of capsular growths. In the 
mosses, however, it is a question not yet settled whether there is 
a total loss or only a partial suppression of sexual reproduction. 
