I 111. \l.(, \l. OF BERM1 DA. I'M 



suddenly to an acute point. Central strand about 150 /u diam.. ni' 

 closely packed filaments, cell- about 20 /i diam., 1 8 diam. long; 

 fascicles of assimilative filaments 600-500 m long, dense, even-topped, 

 making a continuous smooth surface to the frond: filaments many 

 times dichotomous, lower cells ."> 7 /j. diam., 5 s diam. Inn-, subcylin- 

 drical; upper cells shorter, stouter, more ovoid; end cells s H)/x 

 diam., 2-3 diam. long, occasionally with a shori hair, about 1 ,u diam. 

 FructificatioD unknown. Cooper's [sland, April, Hervey. 



The peripheral filaments do not arise directly from the cells of the 

 central strand; at the summit of one of these cells a short conical or 

 ovoid cell is formed, from which radiate the basaJ filaments of several 

 peripheral fascicles; these filaments are usually straight ami im- 

 branched for 200-400 yu. then dichotomous. The substance is softer 

 than in L. valida, not as soft as in L. pvlvendenta. The reference to 

 the genus Liagora is from the structural characters; we have found 

 no fruit. As is well known, the amount of calcification varies much in 

 the different species, but there is only one species recorded practically 

 free from lime, L. dubia (Bory) Bornet in De Toni, 1905, p. HL )s >; 

 Cladostephus dubius Bory, 1832, p. 331, PL XXXVIIhis, fig. 6. 

 Little is known of this species beyond Bory's plate and description, 

 but it seems to be quite distinct from the present species. 



Family CHAETAXGIACEAE. 



Scinaia Bivona. 



• 

 S. complaxata (Collins) Cotton, 1007, p. 2(30; Setchell, 1914, p. 

 100, PI. XI, figs. 19-22; S.furcellaia var. complanata Collins, P. B.-A.. 

 No. 836; 1906, p. 110. Farlow. A single specimen in the Farlow 

 herbarium is the only representative of the species and genus that we 

 have seen from Bermuda; as the segregation of the forms till recently 

 included under S. furcellata has only just been made, it is impossible 

 to locate the S. furcellata recorded by Moseley, "a single specimen 

 dredged." 



Galaxacra Lamouroux. 



Representatives of this genus are common all around the islands, 

 hut the distinguishing of species is very difficult. We note below five 

 species in regard to which we feel some confidence, but we have many 



