Phyllophora Brodiæi and Actinococcus subcutaneus. 30 
(fig. 15 G). The cultures were kept going during the following 
year, but owing to the bad conditions in the old cultures 
the germlings now grew very slowly if at all. The best 
developed germlings were obtained from the bottom and 
the side walls of a glass-vessel in which a nemathecia- 
bearing plant had been laid down. Fig. 16 D shows a well 
developed, about 14 months old, 
oblong basal disc much re- 
sembling that found in the Bal- 
tic Sea by DARBISHIRE and 
figured by him in 1895 fig. 24. 
It bears a young terete upright 
shoot near the margin. The 
germlings drawn in fig. 17 are 
about 18 months old; they have 
a large roundish basal disc and 
E 
Fig. 17. Phyllophora Brodiæi. 
Germlings from the bottom of a 
a simple, terete or somewhat glass vessel in which a fructiferous 
complanated upright shoot plant was deposited at the close 
#0 of November 1925, picked up °*/s 
springing from the centre. Those 1997 (18 months old). 33: 1. 
pictured in fig. 18 are about 14 
months older; they have a flat upright frond terete at the 
base, flattened and branched upwards, on the sides or at 
the top, in fig. 18 B by dichotomy. The disc shown in fig. 
18D bears two erect shoots near the border. A better 
developed 3 mm. high, dichotomously branched 20 months 
old frond is shown in fig. 16 F. The two and a half year 
old plants shown in fig. 18 were up to 2 mm. high. 
The dimensions of the last-named fronds are evidently 
very small for plants of that age, but that is certainly 
only due to the bad conditions, in particular in the old 
cultures which were not sufficiently taken care of. At any 
rate, they agreed as well with young fronds of Phyllophora 
Vidensk. Selsk. Biol, Medd. VIII. 4. 3 
