326 Marine Algce of Berwick-ou-Tweed. 



Ptilota elegans, Bonnem. 

 Hydr. loc, p. 22. 



Descr. Ptilofca elegans, J. Ag., Spec. Alg. n., p. 94. 

 Fig. „ „ Ktz., Tab. Phyc. xn., t. 56. 



Ptilota sericea, Saw., Phyc. Brit. pi. 191. 

 Ebsxcc. Ptilota plamosa, b. capillaris, Wyatt, Alg. Damn., no. 77. 



,, ,, g. tenuissima, Hohenack, Alg. Mar. Sice, no. 129. 



Ptilota elegans, Crouan, Alg. Finist., no. 162 ; Le Jol., Alg. Mar. 

 Cherb., no. 17. 

 Syn. „ „ Ktz., Spec. Alg., p. 670. 



Ptilota plamosa, g. tenuissima, Ag., Syst., p. 195 ; Ag., Spec. Alg. 



i., p. 386. 

 Plocamium plumosum, var. b. Duby, Bot. Gal. n. 

 Hab. On rocks between tide-marks usually near low-water, and in 

 caves. Fruit Jan. to June. Common. Sharper Head, Burn- 

 mouth, Holy Island, in the caves north of Dodd's Well. 

 This is the variety of Ptilota plumosa, " with narrow, flaccid 

 fronds and jointed ramuli " mentioned by Johnston in his Flora 

 of Berwick. As he remarks it is " never infested and disfigured 

 with Flustrae, as the parasitical plants very commonly are." 



GLCEOSIPHONIA, Carmich. 



G-ixeosiphonia capillaris (Huds.) Carm. 



Alg. Appin., MS. ; Harv., Phyc. Brit. — Fucus capillaris, 

 Huds., Fl. Aug., p. 591. 



Descr. Gloiosiphonia capillaris, Harv., Phyc. Brit. 



Fig. „ „ Harv., I.e. pi. 57* 



Exdcc. „ „ Le Jol., Alg. Mar. Cherb., no. 210 ; Cm., 



Alg. Finist., no. 182. 

 Syn. ,, ,, J. Ag., Spec. Alg. n., p. 161; Id., Epicr. 



p. 116; Ktz., Spec. Alg., p. 714; Berk., Glean, of Br. Alg., 1. 17, 

 f. 3. 

 Mesogloia capillaris, Ag., Syst., p. 51 ; Harv., in Hook., Br. Fl. n., 



p. 386. 

 Gigartina capillaris, L amour., Ess., p. 49. 

 Gigartina labrica, Lyngb., Hydr. Dan., p. 45, t. 12 (sec. Ag.) 

 Dumontia capillaris, Cm. in Dasmaz, Exsicc, no. 815. 

 Hab. On rocks and stones at extreme low- water mark and below. 



Fruit July and Aug. Very rare. Burnmouth, Holy Island. 

 With us this curious species is most uncertain in its appear- 

 ance, and although it may be abundant one year, it not infre- 

 quently happens that not a single specimen is to be found the 

 next. It is more frequently found amongst the rejectamenta 

 washed ashore from deep water than growing. 



