Pterosperma nationalis Lohmann 1904

A = The non-motile phase (=phycoma) at different focal planes; B = Surface of outer wall showing pores. (DIC)


Life-form: Phycoma phase and solitary flagellate


Resting spore:


Distinctive features: Group of pores in the outer wall of phycoma phase

Similar species: P. cuboides


Parke, M., Boalch, G. T., Jowett, R. & Harbour, D. S. 1978. The genus Pterosperma (Prasinophyceae): species with a single equatorial ala. J. Mar. Biol. Ass. U.K., 58: 239-276.

  Copyright © 1996-2006, Mats Kuylenstierna & Bengt Karlson All rights reserved.
Last modified on 15 September, 2006

Swedish Meteorological and Hydrological Institute

Department of Marine Ecology, Göteborg University, Sweden