14 THE MARINE ALG/E OF ESSEX. 



HIMANTHALIA, Lyngb. 

 Himanthalia lorea, Lyngb., " Hydr. Dan.," p. 36, tab. 8. 

 Walton, 1867, E. G. Varenne ; Harwich, Felixstowe, (7. P. Hope. 



HALIDRYS, Lyngb. 

 Halidrys siliquosa, Lyngb., " Hydr. Dan.," p. 37, tab. 8. 

 Felixstowe, (i. P. Hope. It is interesting to note that Ray 

 mentions the occurrence of this species (the '' Fuais angusfifolivs^ 

 vesiculis longis silujuarum (cmulis, narrow-leaved wrack, with pod- 

 like bladders," of his " Synopsis Methodica Stirpium Britannicarum," 

 which first appeared in 1690) at Harwich, near which it is still to be 

 found after a lapse of 200 years. 



Dictyotaceae, Thur. 

 DICTYOTA, Lamour. 

 Dictyota dichotoma, Lamour, in '' Journ. de Bot.," 1809, 

 t. ii. ^Valton, 1867, E. Cr. ^\arenne ; Felixstowe, (1. P. Hope. 



TAONLA, J. Ag. 



Taenia atomaria, J, Ag., "Spec. Alg.," i, p. loi. Felix- 

 stowe, G. P. Hope. 



PADINA, Adans. 



Padina pavonia, Gaillon, "Diet. d'Hist. Nat.," liii., p. 371. I 

 give this species as an Essex plant on the authority of Ray. Li the 

 third edition of his "Synopsis," p. 43, n. 14, speaking of this 

 plant — Fiicus maritiinus Gallo pavonis pennas refe7-ens — he says it 

 is found " prope Harwicum." In the Buddie Herbarium there is 

 also a specimen with the note " a me collect, prope Harwicum." 

 I presume that Harwich is the town meant, as on page 4 of the first 

 edition the following sentence : " In littore Essexiano non procul 

 Harvico" where there can be no doubt that Harwich is intended, 

 occurs. There is no reason why Padina should not grow on the 

 Essex coast, where many other southern species are to be met with. 



RHODOPHYCE^. 



/. BANGIOIDE.F, Rosen V. 



Porphyraceae (Kutz.), Thur. 



PORPHYRA. 



Porphyra laciniata, Ag., " Syst. Algar ," p. 190. Maldon, 



1867, E. G. Yarenne : Harwich, G. P. Hope : Felixstowe, (!. 



Massee : Clacton, E. A. B, 



