MELANOSPERME®, Sl 
olive colour, very much entangled and matted together, a character which 
is pretty general among the plants of this genus. The fruit is produced 
in oblong masses embedded in the central portion of the branches and 
ramuli, as represented at a (Fig.80). EH. granulosus, under even a moderate 
power, is a pretty and very distinctly marked species, all the branches 
and ramuli being for the most part exactly opposite, the little dark coloured 
elliptical spores being seated on the upper side of the spreading ramuli 
or branchlets, as seen at b (Fig. 80). This species is parasitical on several 
of the lesser algze between tide-marks. FH. brachiatus (c) is another well 
Fic. 81. Ectocarpus littoralis, 
marked species, usually parasitical on Rhodymenia palmata, but rare. 
The filaments are beautifully fine and feathery, excessively branched, 
all the branches and ramuli being generally opposite. The fruit, which is 
binate, or separated intc two portions, is imbedded in the axils of two oppo- 
site ramuli or branchlets, just where the branches are quarternate or cross- 
branched in fact, whence the specific name of ‘“‘brachiatus.’”’ In the 
living state the fruited branches of this species under the microscope are 
I 
