PHYCOLOGIA BRITANNICA: 
OR 
A HISTORY OF BRITISH SEA-WEEDS, 
CONTAINING 
COLOURED FIGURES, GENERIC AND SPECIFIC CHARACTERS, 
SYNONYMES, AND DESCRIPTIONS 
OF 
ALL 'THE SPECIES OF ALGA INHABITING THE SHORES OF THE 
BRITISH ISLANDS. 
BY 
WILLIAM HENRY HARVEY, M.D., M.R.I.A,, 
“Tt 
Keeper of the Herbarium of the University of Dublin, and 
Professor of Botany to the Royal Dublin Society. 
IN FOUR VOLUMES. 
VOL. IV. 
CHLOROSPERMEZ, OR GREEN SEA-WEEDS. 
Synopsis, No. 280 to 388. 
LONDON: 
REEVE AND BENHAM, 
HENRIETTA STREET, COVENT GARDEN 
1846-51. 
