A new British Moss. 
7 * 
ditions have been observed. In some specimens I have been 
unable to find any antheridia at all. It is, of course, possible 
that, as at the time the specimens were examined they were 
in fruit, the antheridia had in some specimens decayed or been 
destroyed, though I think this unlikely 1 . These specimens 
were therefore dioicous. In other specimens antheridia were 
found in the axils of the leaves in considerable numbers, but 
without any archegonia with them, the archegonia in this case 
being found in the axils of other leaves ; the plants were there- 
fore cnitoicous. In others, again, antheridia and archegonia were 
found mixed in the axil of the same leaves, a synoicous con- 
dition. Unfortunately I did not note down each specimen as 
I examined it, and consequently I cannot give any figures to 
represent the proportions of dioicous to autoicous and synoicous 
specimens. My impression is that autoicous and synoicous 
are both rather more numerous than dioicous ; the autoicous 
and synoicous being about equal in number. I did not examine 
enough specimens to form a really just estimate of the pro- 
portion of the different arrangements ; not more than thirty 
specimens were dissected altogether. 
I have not been able to make out any difference in the 
structure of the leaf from that found in C. undulata. 
Besides the form just described, certain other variations from 
the normal Catharinea- type have been found. In some speci- 
mens I have found two terminal fruits growing from the 
same inflorescence. This variation is, I believe, fairly common, 
and has, I think, been recorded before. I have observed it in 
other mosses, e.g. Dicranum scoparium and Poly trichum for - 
mosum , Hed. A variation that I have not before seen noticed 
is one represented in Fig. 1, which I have seen twice at least. 
On the one year-old oophyte stem, with a terminal fruit, an 
innovation is produced immediately below the ‘floral’ axis. 
1 It curiously happens that in all the specimens I sent to Professor Lind- 
berg and to Dr. Braithwaite which they examined they failed to find any 
antheridia. 
