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HANDY BOOK OF 



rowing in deep water, they either become brown or nearly 

 lack. 



Family I.— Ftjcje, 



Plants turning to black when dry; their substance 

 leathery or woody. Fronds flattened or hair-like, or form- 

 ing distinct leaves, many of the species bearing air-vessels. 

 Seeds contained in distinct gelatinous receptacles. 



TVCVS NODOSUS.* 



The term Frond generally comprises every part of a 



* The whole of the beautiful illustrations which appear in this 

 volume have been copied, by permission of Dr. Harvey and Messrs. 

 Reeve, Benham, and Reeve, from Phycologia flritannica, or British 



