106 COLLINS AND HERVEY. 



rocks and mangroves, usually in company with Caloglossa Leprieurii, 

 species of Bostrychia, Cladophoropsis membranacea and the like. 

 Cystocarps were found on plants collected near Flatts Bridge in 

 August, Collins. The pinnate branching is usually quite manifest, 

 but occasionally plants are found where it is not at all conspicuous; 

 these are quite close to the typical C. Opuntia of Europe. 



MERISTOTHECA J. G. Agardh. 



M. DUCHASSAINGII J. G. Agardh, 1871, p. 36; 1879, PI. XXXI, 

 figs. 1-3. A single specimen among other algae collected March 4, 

 1911, Hervey, without exact locality. Evidently not common in 

 Bermuda, as this one specimen, about 2 cm. high, is all that is recorded. 

 It grows to a considerable size along the coast from Florida to North 

 Carolina, specimens from Beaufort, N. C., reaching a length of 4 dm. 

 It is usually very rough with short, stiff proliferations on the surface 

 and margin, but occasionally it occurs quite smooth, when it is not so 

 easily recognized. The difference is not one of maturity, as large 

 smooth plants are found as often as small ones. 



EUCHEUMA J. G. Agardh. 



1. Fronds flattened. 1. E. Gelidium. 



1. Fronds stout, subterete, very spinous. 2. E. denticulatum. 



1. E. GELIDIUM J. G. Agardh, 1851, p. 627; 1876, p. 602; P. B.-A., 

 No. 2184; Sphaerococcus Gelidium Kiitzing, 1869, PI. XX. St. 

 David's Island, Feb., Hervey, a few small plants only; South Shore, 

 April, Collins. 



2. E. denticulatum (Burm. f.) comb, nov.; E. spinosum J. G. 

 Agardh, 1847, p. 16; E. isiforme Harvey, 1853, p. 118, PI. XXIV; 

 P. B.-A., No. 1886; Fucus dcnticulatiis N. L. Burman, 1768, p. 28; 

 F. spinosus Linnaeus, 1771, p. 313; Turner, 1808, PI. XVIII. Rein; 

 Moseley; April, May, June, Kemp; March, Wadsworth; Tucker, 

 No. 14; Castle Harbor, Jan., Farlow; Bailey's Bay, Mrs. Hastings 

 in Farlow herb.; Bailey's Bay, Jan., Gibbet Island, Jan., Cooper's 

 Island, April, Devonshire Bay, Harris Bay, Dec., Hervey; Gravelly 

 Bay, Tucker's Town, April, Aug., Collins. As may be inferred from 

 the list of stations and collectors, this plant is plentiful and attractive. 

 The living plant is of a dull red, and if prepared without exposure to 



