THE MARINE ALGAE OF ESSEX.
21
C. corymbosum, Ag., "Spec. Alg.," ii., p. 165. "Floating
over the Deben bar from sea, Sept., 1882," G. P. Hope.
PLUMARIA, Schmitz.
Plumaria elegans, Schmitz., in "Flora," 1889, heft. 5. On
cement stone rock, Felixstowe and Harwich, G. P. Hope and G.
Massee.
ANTITHAMNION, Nag.
Antithamnion plumula, Thur., ap. Le Jolis, "Liste des
Alg. Mar. de Cherbourg," p. 112. Estuary of the Orwell and Stour,
E. M. Holmes.
CERAMIUM, Lyngb.
Ceramium tenuissimum, J. Ag., "Spec. Alg.," ii., p. 120.
Near Harwich, F. M. Holmes.
C. deslongchampsii, Chauv., "Alg. Norm.," No. 83. "Below
low-water mark Dovercourt stone pier," and Harwich, G. P. Hope ;
Southend, July, 1890, Mrs. T. H. Buffham.
C. diaphanum, Roth., "Catal.," iii., p. 154. Cement stone
rock, Felixstowe and Harwich, G. P. Hope ; Dovercourt, E. A. B.
C. rubrum, Ag., "Syn.," p. 60. Maldon, 1844, Walton, 1867,
Harwich, 1888, E. G. Varenne ; Felixstowe, G. P. Hope and G.
Massee; Clacton, E. A. B.
C. flabelligerum, J. Ag., "Advers.," p. 27. Fort Breakwater,
Harwich, G. P. Hope; Felixstowe, E. A. B. Not uncommon.
Grateloupiaceae.
GRATELOUPIA, Ag.
Grateloupia filicina, Ag., "Spec. Algar,," i., p. 223. Cement
rock at half tide, Felixstowe, G. P. Hope.
Dumontiaceae, Schmitz.
DUMONTIA, Lamour.
Dumontia filiformis, Grev., "Alg. Brit.," p. 165, t. 17.
Blackwater Estuary, E. M. Holmes.
DILSEA, Stack.
Dilsea edulis, Schmitz., in "Flora," 1889, p. 453. Harwich,
G. P. Hope.