Notes. 
5 2 5 
Streblonema fasciculatum. 
„ intestinum. 
„ simplex, 
Ectocarpus erectus. 
„ parvulus. 
„ caespituluSo 
■„ fenestratus. 
„ Crouani. 
„ Sandrianus, 
„ virescens. 
„ secundus. 
„ longifructus. 
„ acanthophorus. 
„ Hincksiae. 
„ brachiatus. 
RHODOPHYCEAE. 
Antheridia and cystocarps are both unknown in Actinococeus, 
Haematocelis, Haematophlaea, Hildenlbrandtia, Monospora, 
R-hodochorton, and Rhododermis. 
Antheridia are unknown in Ahnfeltia, Calosiphonia, Compso- 
thamnion, Cordylecladia, Dilsea, Dumontia, Euthora, Grate- 
loupia, Schmitziella, and Sphaerocoeens. 
Tetraspores are unknown in Ahnfeltia, Bonnemaisonia, Calosi«“ 
phonia, Helminthora, Helminthocladia, Naccaria, ISTemalion, 
Seinaia, and Sphaerocoeens. 
In the following species one or more organs of reproduction are 
unknown and are indicated thus: — a. = antheridia ; c. = cystocarps; 
t.= tetraspores. 
Antithamnion floccosum: a. 
„ barbatum : a., c. 
Callithamnion affine : a., c. 
„ interruptum : a., c. 
„ fruticulosum : a. 
„ tripinnatum : a., c. 
Ceramium acanthonotum : a. 
„ ciliatum : a. 
Chondrus crispus : a. 
O o 
