The genus Bangia has long been a receptacle for heterogeneous
species, and though partially reformed by M. Chauvin in the
excellent memoir above quoted, it can hardly be said that in
making the present plant a species of Bangia he has more than
indicated its near affinities. For though doubtless allied to
Bangia, its structure is more simple than in the genuine members
of the genus, and it stands nearer perhaps to Sphceroplea of
Agardh. It might, however, be more properly regarded as the
type of a new genus characterized by the binate spores.
Fig. 1 Tufts of B angia elegans, growing on Gbao ilama conpekvoides :—
the natural m e ^ magnified. 3. A young apex. 4. A portion
of the older part of the frond -.—highly magnified.
