See eRe eT 
1897 | CURRENT LITERATURE 2iF 
are ascomycetes in which sexual organs are unquestionably present in the 
form of trichogynes that are fertilized by antherozoids produced in curious 
antheridia. 
The main body of the plant, termed the receptacle, is usually quite simple 
in structure. It consists of several cells and is attached by a disk-like base 
to the integument of the insect. This integument is pierced at the point of 
attachment, and the parasite probably draws much of its nourishment from 
the insect. However, there is no mycelium in the body of the host, and under 
the most favorable circumstances one sees only a few slight processes put forth 
from the basal cell of the receptacle. The hosts do not appear to be seri- 
ously affected by the presence of the parasite. On the top of the receptacle 
are found filamentous appendages of great importance systematically and 
Structurally because they bear the antheridia. Lower down on the side of 
the receptacle is situated the procarp, a multicellular structure containing a 
carpogenic cell and bearing the trichogyne. 
After fertilization the carpogenic cell divides several times, and from cer- 
tain of the products are developed the asci. While the asci are being dif- 
ferentiated the sterile cells of the procarp are active in forming the wall of 
the perithecium. The latter is generally a flask-shaped receptacle, opening 
through a pore at the top, in many respects, resembling the cystocarp of cer- 
tain Rhodophyceze. The ascopores are usually discharged in pairs from the 
perithecium and insects are probably infected through bodily contact with 
one another. One usually finds the plants growing in groups close together, 
a habit of great importance as it makes more sure the possibility of fertiliza- 
tion. In certain peculiar dicecious species one of the spores of the pair 
is smaller than the other and develops into a small male plant at the side ~ 
of the female which may be ten times as large as the former. 
The antherozoids are very small bodies, frequently rod shaped, and are 
developed in peculiar flask shaped press an vnamsdenset boss protoplasm 
lies in the bottom of the cell and th 
and discharged through a a - into the neck of the flask. In some 
instances several cells disch their ids into a common cavity, and 
the structure is then termed a ‘conipoesid antheridium. Antherozoids may be 
observed in great numbers attached to trichogynes, but the cells are so small 
and the points of fusion so minute that observations upon the precise act of 
The trichogyne may be simp or very much branched. It may be a 
single cell or a very elaborate cuisines structure. In its most complex 
form it resembles a dense bunch of delicate filaments because of the numer- 
ous ica The ends of the f filaments may become spirally twisted. 
trichogyne i is never directly attached to sea carpogenic cell. In the 
simples cases the two organs are separated from one another ai a cell 
