title: Bristles and spikes in chlorococcales: ultrastructural studies in Acanthosphaera, Micractinium, Pediastrum, Polyedriopsis, Scenedesmus, and Siderocystopsis.
mesh_terms: D002473:Cell Wall / Q000648:ultrastructure; D056890:Eukaryota / Q000648:ultrastructure*; D008854:Microscopy, Electron