166 



CRTPTOGAMIA. 



Caulerpa clavifera, Ag.; Kutz. I. c. 

 Ulva latissima, Linn.; Harv. I. c. t. 171. 

 Enteromorpha compress a, Grev. ; Harv. I. c. t. 335. 



NORTH ATLANTIC OCEAN 



Sargassum vulgare, Ag.; J. Ag. Sp. I, p. 342. 

 Sargassum bacciferum, Ag. ; J. Ag. I. c. 



CAPE HE VERHE ISLANHS. 



Chnoospora fastigiata, var. Atlantica, J. Ag. Sp. 1, p. 172. 



Ectocarpus hamulostjs, Harv. & Bail. (Tab. 7, fig. 3-5.) 



E. ccespite brevi densissime implicate, filis implexis curvatis vage ramosis, 

 ramis liorizontalibus refractisque secundis vel alternis, ramulis hamatis 

 simplicibus vel furcatis patentiasimis sparsis, articulis diametro duplo 

 triplove longioribus ; sporis spJicericis vel ovalibus ramulos terminantibus 

 (i. e. pedicellatis) . 



Tufts scarcely an inch high, very dense. Filaments matted together, 

 irregularly branched ; the branches spreading at right angles or reflexed, 

 very unequal in length, secund or alternate, producing a few scattered, 

 short, hooked ramuli, some of which are simple, some forked, and 

 some yet more divided. Articulations twice or thrice as long as broad, 

 with brown endochrome. Spores terminating the ramuli, either glo- 

 bose or oval. A very curious and well-characterized species. 



Laurencia cespitosa, Lamour. ; Harv. Phyc. Brit. p. 286. 



Htpnjea musciformis, Lamour. ; Kutz. 1. c. p. 758. 



Gelidium corneum, Lamour. ; Kutz. I. c. p. 764. 



Chondrus uncialis, Harv. & Bail. (Tab. 7, fig. 67.) 



G. fronde unciali stipitaia sursum flahelliformi angustissima plano-com- 

 pressa multoties dichotoma fastigiata, axillis patentibus, apicibus 

 bifidis. 



Frond stipitate. Stipe half the length of the frond, simple, flattened, 

 ending in a repeatedly dichotomous lamina; segments as narrow as 



