MARINE ALG.E OF BEEWICK-ON-TWEED. 



Class L— C YANOPHYCEJ. 

 Order I.— SCHIZOPHYCEiE. 



Family — C hroococcacese. 

 GLCEOOAPSA (Ktz.) Naeg. 



GuEOOAPSA CREPIDINUM, Thuret. 



Notes Algologiques, p. 2. 

 Descr. Grlceocapsa crepidinuui, Fa/flow, Mar. Alg. New Eng., p. 27. 

 Figs. „ „ Bornet et Thuret, I.e. pi. C, figs. 1-3 ; 



Farloiv, I.e. pi. i. fig. 1. 

 Exsicc. „ ,, Holmes, Alg. Brit. Rar. Exsicc, no. 06. 



Syn. Protococcus crepidiuum, Thuret, in Mem. Soc. Natur. Cherbourg, 

 vol. ii., p. 388 ; Le Jol., Liste des Alg. Mar. de Cherb. p. 25. 

 Pleurooocous crepidinum, Bdbenh., Fl. Europ. Alg., Sec. in., p. 25. 

 Hah. On rocks and wood-work near high water mark, June — Oct. 

 Rare. On the walls of the Quay, Berwick, sparingly. Rocks 

 beyond Sharper Head. 

 This species, for the identification of which I am indebted to 

 Dr. Bornet, forms dark brown gelatinous layers on wharves, 

 posts, etc., near high water mark. The plant consists of a 

 number of yellow spheroidal cells from -0035 to -005 mm. in 

 diameter, usually united in twos or some multiple of two, 

 imbedded in a brownish gelatinous stratum. 



DERMOCARPA (Crn.) Bornet. 



Dkrjiocarpa prasina, (Peinsch.) Bornet. 



Notes Algologiques, n., p. 73. — Sphsenosiphon prasinus, 

 Reinsch., Contrib. ad Algol, et Fungol. i. p. 17 (quoad 

 plantam in Catenella opuntia crescentem.) 

 Descr. Derniocarpa prasina, Bornet, I.e. 

 Figs. ,, ,, Bornet, I.e. pi. 26, figs. 6-9 (Tub. nost. vn. 



fig. 2-A. 

 Exsicc. ,, ,, Holmes, Alg. Brit. Rar. Exsicc, no. 79. 



