276 



SOME NKW BRITISH MARINE ALG.E , 



E.A.B.; Seaton, T. H. Buff ham. Although my specimens agree 

 well with the description of this species, I am a little uncertain as 

 to their identity, as no figures of Ph(Eostroiiia are given. 



StrehJonema volubile Thur. in Le Jol. List Ahj. Cherh. p. 73. 

 CyUndrocarpus voluhilis Crouan, Ahj. Finist. No. 11. Ectocarpus 

 Vdluhilis Crn. Flor. Finist. p. 161. On Dudresnaj/a coccineci, Stud- 

 land, Mrs. Gray; and Sidmouth, Mrs. Moseley (Herb. Brit. Mus.) ; 

 Torquay, Mrs. Griffiths (Herb. Linn. Sec.) ; Swanage, E. A. B. 

 In Gloeosiphonia capillaris, Teignmouth, T. H. Bnffliam. In August, 

 1894, I was fortunate enough to detect this very interesting little 

 plant on some fine specimens of Diulresncrya coccinea which I had 

 found at Swanage, in Dorsetshire ; since then I have examined all 

 the specimens of the host-plant in the Herbaria of the British 

 Museum and the Linnean Society, and in several cases have found 

 them more or less attacked by this species of Strehlonema. Mr. 

 T. H. Buffham has sent me some beautiful slides of a Strehlonema 

 with plurilocular sporangia, which he found in Gloeosiphonia capil- 

 laris at Teignmouth in August, 1892. The habit of the plant and 

 its vegetative portions are so like those of S. roluhile that I venture 

 to think Mr. Buffham's plant may be the sexual form of that 

 species. The plurilocular sporangia vary in shape from roundish 

 or oval to spindle-shaped, and from 20 to 75 /x in length, while they 

 are usually from 18 to 21 /^ wide in the broadest part. 



Ectocarpus clandestimis Sauvageau, Journal de Botaniqne, tom. vi. 

 1892. Elachista clandestina Crouan, Flor. Finist. p. 160, pi. 24, 

 fig. 157, 1-2. On FacAis vesiculosus, F. serratus, and F. ceranoides, 

 &c., Berwick-on-Tweed, E.A.B. This very interesting little plant 

 is not uncommon at Berwick. I first detected it on some specimens 

 of F. ceranoides gathered by my brother in May last, but have since 

 found it in abundance on several species of Fuci. The fronds are 

 at first formed beneath the cortical layer of the host-plant, and 

 break through it in the manner of an JEcidium. M. C. Sauvageau 

 has very kindly compared my plant with the original specimen 

 gathered by the brothers Crouan, and now preserved in the Paris 

 Museum, and he assures me that the two plants perfectly agree. 



E. iBcidioides Rosenv. Groeyil. Havahj. p. 894, fig. 27. On Lami- 

 naria saccharina var. phyllitis, Cumbrae ; and Berwick-on-Tweed, 

 E.A.B. ; Filey, E. M. Holmes; Seaton, com. T. H. Buffham. 



E. dasycarpus Kuckuck, Bat. Centralbl. 1891, Heft. 40-44 (re- 

 print, p. 21). Swanage, on Cutleria multijida, August, 1887, T. H. 

 Buffham; on Chorda filum, 1894, E.A.B. 



E. Reinholdii Rke. Atlas Deutsch. Meeresaly. pi. 41. At a recent 

 meeting of the Linnean Society, Mr. E. M. Holmes showed some 

 beautiful specimens of this species from Weymouth. I understand 

 that they were gathered by Mrs. Holmes, a lady who has already 

 added more than one species to the British Marine Flora, and who 

 by her example has done much to revive an interest in British sea- 

 weeds. 



Myriotrichia densa Batt. Ann. Dot. ix. pp. 168 & 311. Swanage, 

 T. H. Bvffham ; Cumbrae and Weymouth, E.A.B.; Arran, Miss 

 Barton. 



