Rivulariaceae
Encyclopedia
Rivulariaceae is a family of cyanobacteria within Nostocales
in which the filaments (trichomes) are tapered from wider at the base to narrower at the tip. The type species
is Rivularia haematites (Dc) C. A. Agard.
Nostocales
The Nostocales order contains most of the species of cyanobacteria. It includes filamentous forms, both simple or branched, and both those occurring as single strands or multiple strands within a sheath. Some but not all members show a decrease in width from the base...
in which the filaments (trichomes) are tapered from wider at the base to narrower at the tip. The type species
Type species
In biological nomenclature, a type species is both a concept and a practical system which is used in the classification and nomenclature of animals and plants. The value of a "type species" lies in the fact that it makes clear what is meant by a particular genus name. A type species is the species...
is Rivularia haematites (Dc) C. A. Agard.