BROWN SEAWEEDS OF THE SALT MARSH. 281 
a marsh formation of Pelvetia. However, the results must be taken with 
caution, because, had the conditions been wholly favourable, fruiting would 
have occurred in the cultures. 
Fie. 4. 
Pelvetia canaliculata, var. coralloides, growing with Salicornia europea. Nat. size, 
The Coralline Form of Pelvetia.—Another form of Р. canaliculata was found 
embedded in the soil, about 2 cm. of it protruding from the surface. Text- 
fig. 4 shows this form growing with Salicornia europea. The appearance 
of the frend was similar to the normal attached Pelvetia. — Foslie describes 
a variety, P. canaliculata, var. radicans *, which grew gregariously in shallow 
pools, the lower part of the frond being provided with rhizoids, by means of 
* К. Norske Vidensk. Selsk. Skriften, 1891, p. 263. Trondhjem, 1899, 
x2 
