(13) Phycomycetes (Algal fungi); (I 4) Phaeophyceae (Brown Algae).
Thus simple forms included in the Heteroconteae, Chlorophyceae and Phaeophyceae show an obvious connection with the Flagellatae; the Peridineae may be regarded as a further developed branch; the Conjugatae and Diatomaceae cannot be directly connected; the origin of the Rhodophyceae is also obscure; while the Characeae are an advanced and isolated group (see ALGAE).
The chloroplasts are generally distinguished by their green color, which is due to the presence of chlorophyll; but in many Algae this is masked by another coloring matterPh ycoerytlsrin in the Florideae, Phycophaein in the Phaeophyceae, and Phycocyanin in the Cyanophyceae.
Phaeophyceae, or Brown Algae.
A similar uncertainty exists with reference to certain groups of Phaeophyceae, and the matter will thus arise again.
How would you define phaeophyceae? Add your definition here.