70 Vcdzey . — On Catharinea later alis. 
in Telemarken, in Norway, and subsequently in other localities 
in the south of Norway. In October, 1886, I first found 
it at Broxbourne, in the county of Hertford, and again in 
October, 1887, and I have seen it frequently since in other 
localities in the same neighbourhood. 
This form is distinguished by bearing sporogonia laterally 
on the stem of the oophyte in the axils of the leaves, in addi- 
tion to the sporogonium borne at the apex of the oophyte- 
stem (Figs. 2, 5, and 6). There may also be more than one 
lateral fruit on the same stem, and each of the additional ones 
may be produced in the axil of the same leaf as the first, or in 
that of another (Fig. 3). I have in some specimens even found 
a young partially developed embryo of a third. It is probable 
that this would develop later, as some of the specimens which 
I have in my possession gathered by Dr. Bryhn, dated 
May 2 6, 1886 1 , have some sporogonia still immature ; and in 
one specimen I have found three mature lateral setae in 
addition to the single terminal one. Bryhn mentions as many 
as five altogether. Sometimes lateral fruits only are developed, 
as shown in Fig. 4. 
In the majority of specimens that I have examined the 
sporogonia appear to be formed in archegonia, fertilized in 
acropetal succession, the lateral fruit being the youngest. 
In some few specimens this was not the case, the oldest being 
that furthest from the apex ; and in one or two no order 
acropetal or basipetal could be recognised. 
The lateral fruits differ from the terminal constantly, 
or almost constantly, in having a distinctly flexuose and 
slightly thinner seta; in many the flexuose character is 
very marked, in only a few it is hardly perceptible. 
The arrangement of the antheridia and archegonia presents 
considerable variations. In all the Scandinavian specimens 
which have been examined the inflorescence has been described 
as autoicous . In my English specimens three different con- 
1 These specimens were kindly sent me by Professor Lindberg from his 
herbarium. 
