Home
Info
Splash
TextTree
A1. Nonmotile algae without chloroplasts: Cyanobacteriophyta
A2. Nonmotile algae with chloroplasts
B1. Cells usually solitary
B2. Nonmotile colonies with two or more cells
B3. Filamentous algae including pseudofilaments (see epiphyte links for epiphytic filaments)
B4. Cells living inside zooplankton or other aquatic animals (endozoic) or attached to aquatic plants (epiphytic)
C1. Chlorella-like cells living inside zooplankton and other aquatic animals (endozoic):
Zoochlorella group
C2. Some or all cells with one or more long hair-like extensions (setae)
D1. Cells spherical with single long, sheathed hair; solitary or in irregular colonies or filaments:
Chaetosphaeridium
D2. Cells rectangular or trapezoidal; joined into long filaments radiating from central point to form flat, spherical or oval colony:
Coleochaete scutata
D3. Cells within filament irregularly shaped, rounded; filament irregularly branched
C3. Cells lack hair-like extensions(setae)
A3. Motile algae with chloroplasts and flagella
A4. Cells divided into paired semi-cells that are approximate mirror images of each other:
Desmids
A5. Cells enclosed in glassy, ornamental frustules; many species exhibit gliding movement:
Diatoms
