194 ON CLADOTHELE HOOK, F. ET HARY. (STICTYOSIPHON KUTz.) 
phycologist of the present day describing it for the first time. 
Small wonder, then, that of late years it has been left by authors 
J, 
and not empty ones, being figured. After repeated sections of 
8 y findi 
of the central axis and in the peripheral cells. A com ison of 
Cladothele with material of Stictyosiphon amply confirmed this view 
in all details. The plentiful empty sporanges had, as I have 
k 
indicated 
noted to the peripheral cells of Codium. When examined in surface 
view, the full spora: 
the 
rregular so: : 
faithfulness of the original description of the vegetative structure of 
Cladothele, so far as it goes, and if the imperfect knowledge of the 
green alge, and even more of the obscure forms of Phaophycee 
which existed at the time, be taken into account, it will be under- 
