Algae World: Phycological Research

Navicula protracta (Parlibellus protracta)

drawings made in 1988 from material from Figgate Loch, Edinburgh, Scotland; published in

Mann, D.G. (1988). Sexual reproduction and systematics of Navicula protracta. Diatom Research 3: 227-236.

• sheet 1 gametes and zygotes
  
• sheet 2 gametes, zygotes, auxospores
  
• sheet 3 auxospores
  
• sheet 4 acetocarmine preparataions: gametogenesis, gametes, zygotes, auxospores
  
• sheet 5 acetocarmine preparataions: vegetative cell, paired cells, gametes, initial cells