I s I OLXJNS WD 111 i;\ El , 



removed from the typical Mediterranean form. In the latter the 

 cells below are 6 s diam. long, 2 1 diam. above, while in the present 

 species only the terminal cell is usually over 2 diam. long. It seems 

 to us safer to treat it as a new species than l<> put it in ;i 

 typical form, at least, Is so distinct. 



L3. C. i ran uuosa Kutzing, L843, p. 269; L853, p. 26, PI. \< IV. 



I: Collins, 1909, p. 346; P. B.-A., No. 2014. Harrington Sound, 

 Wadsworth, March; same station, Oct.. Hervey. A common Medi- 

 terranean ami West India species. Wadsworth's plants an- rather 

 more -lender than the typical, but otherwise quite the same. The 

 material collected by us in October formed Loosely floating mas 

 evidently a later condition; all branching was wide; the dichotomies 

 in the lower part about 120°, the ranmli, usually quite short, about 



11. C. catenifera Kutzing, L849, ]>. 390; L853, p. -'I, 11. 

 LXXXIH,fig. I; Collins, L909,p.347; P. B.-A., No. 2069. Kemp in 

 herb., as Cladophora sp.?; Howe; Bed Hay, St. David's Island, -lime. 

 cave at Gravelly Bay, Feb., April. Dingle Hay. March, Hervey. 

 The most striking of our species of the genus, with stout stem and 

 main branches, very long cell-, linn lustrous cell wall. Bermuda 

 plants are 10 20 cm. high; at Jamaica it sometimes reaches a height 

 of 50 cm. In February only very small plants were found. 



15. C. fuliginosa Kutzing, 1849, p. U5; Collins, 1909, p. 348; 

 P. B.-A., Xo. 2012. Kemp, St. George's, unnamed specimen in 

 herb.; Harris Hay, Jan., Apr., Gravelly Bay, Dec, Inlet. D 

 Hervey; Gravelly Bay, Au.ir., Collin-. A coarse species, generally 

 distributed and common; always infested with the fungus Blodgettia 

 Borneti Wright. The combination of the two forms the Blodgettia 

 confenoides Harvey, L858, p. I s . Bl. XLV. C. 



16. C. Howei Collins, 1909a, p. is, Bl. LXXVIII, fig. 1; 1909, 

 p. 349. Tide pool., Gibbet [aland, .lime. 1900, Howe. The short, 



subsimple filaments arise from a dense ma-- of prostrate filament-, a 

 character found in no other of our species. Gibbet Bland 13 the type, 

 and SO far as known, the only, station for the specie-: so for the p 

 cut it may he considered ;i- endemic. 



17. C. kum tffl T Ag.) Harvey, 1846 51, Bl. I < XXXVI; 

 P.B.-A., No. -'on. Conferva repena J. G. Agardh, 1842, p. hi; 

 AegogropUa repens Kutzing, L854, p. 1">. PI. IAX. fig. 11. Gravelly 

 Bay, Jan., Feb., Hervey. A low, densely matted plant of dark color, 

 not however, with prostrate and erect filament- clearly differentiated. 

 The plant from California distributed under this name a- B. B.-A., 

 No. ~-7 has since proved to he C. trichotoma \. Ktitz.; the present 



ird is therefore the first for America. 



