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of the olive tint, and the plant might then, and very possibly may be, 

 frequently passed over as a Cladophora. As it advances in age, however, 

 the olive tint becomes more apparent, and ultimately they assume a 

 brownish green or olive brown, passing into yellowish brown in decay. 



The only species with which there is any risk of confounding it, is the 

 preceding, JE. fasciculatus, but from that it may be readily known by its 

 more regularly pectinated ramuli, and still more by the short, tooth-like 

 utricles. It seems closely allied to that species, however, both in habit 

 and fructification. 



EXPLANATION OF PLATE CLXXVL 



Fig. 1. — Ectocarpiis Hinchsioe, natural size. 

 2. — Branch with ramuli. 

 3. — Eamiilus. 

 4. — Ramulus in fruit. All magnified. 



