1917] BRYAN—ARCHEGONIUM OF CATHARINEA 5 
In 1884 Hy (8) summarized the archegonial situation in the 
Musci as well as in other groups. His paper is noteworthy only 
for its philosophical considerations. In a very general way he 
confirms the findings of JANczEwskI, but adds little that is new or 
convincing to the subject. 
- In 1895 CAMPBELL (2, pp. 201, 202) studied the development of 
the archegonium of Funaria hygrometrica. Here the first division 
separates a basal cell from a terminal cell, which is the mother cell 
of the archegonium proper. ‘In the latter 3 walls now arise, as in 
the Hepaticae and Andreaea, but in Funaria they do not all reach 
the basal wall, but intersect at some distance above it, so'that they 
inclose a tetrahedral cell, pointed below instead of truncate.” The 
tetrahedral cell makes the usual division into “‘cover cell” and 
inner cell. The latter now divides, forming the primary neck canal 
cell and the ventral cell. “‘The cover cell instead of dividing by 
quadrant walls has a regular series of segments cut off from it and 
acts as an apical cell. These segments are cut off parallel both to 
its lateral faces and base and thus form 4 rows of segments, the 3 
derived from the lateral faces forming the outer neck cells, and the 
row of segments cut off from the base constituting the axial row 
of neck canal cells.” As to the further growth of the canal TON, 
SORE Ten so far as ld be det 
do not divide after they are first formed.” : 
GaveET (4) in 1897 undertook a ve-ezainination of the ole 
question of archegonial development i in the Bryophyta, the i inves- a | 
__ tigation covering numerous forms ae 
the Musci. In the latter group, kis char basen ae tke : 
_ ~present discussion, he mentions s species of Sphagnum, 2 of An- 
Preden the following members of the a a, 
Z | bec e : Summing up the m in points of his, sudy ( Gaver arrives . S : 
hein. at 
