Note 125 — SUPPLEMENTARY NOTES.
Reading edition
The name Diatomaceæ is restricted by M. Brébisson to those species which have a siliceous envelope, or cuticle; and that of Desmidiæ to those which are not siliceous, but reducible by heat to carbon.
Reading edition
The name Diatomaceæ is restricted by M. Brébisson to those species which have a siliceous envelope, or cuticle; and that of Desmidiæ to those which are not siliceous, but reducible by heat to carbon.