- 105 - 
Fig. 2. 
In the same colony of Aneura in which 
the plant above mentioned grew was another 
which showed a decided growth in one of the 
unfertilized archegonia which were carried up 
the calyptra by its basal growth. This arche- 
gonium was about one-third the size of the 
pjg. T calyptra on which it grew, and projected at 
right angles from it at about its middle point. 
On sectioning it was seen that this archegonium contained no sporophyte 
and had scarcely a trace of the egg and neck cavity. Its growth seemed 
to be induced by a sympathetic response to the vitalizing influence of the 
adjoining sporophyte. 
A second very unusual but entirely different case of fasciation I have 
met with in Preissia quadrata. While collecting at Ithaca, New York, a 
plant was found showing a double archegoniophore. A photograph of it is 
shown in Fig. 2. The stalk is almost exactly twice as wide as in the single 
archegoniophore shown in the same figure. 
Univ. of North Carolina, Chapel Hill, N. C. 
FiG. 1. Twin sporophyte in Aneura pinguis X 15. 
Fig. 2. Double archegoniophore in Preissia quadrata . Natural size. 
