All / Books / Algae All Books Other Algae Fish Plants Invertebrates Riverflies Courses Merchandise Sale A Guide to the Morphology of the Diatom Frustule - SP44 - PHOTOCOPY ONLY £7.00 Add To Cart The Phytoplankton of Windermere - SPEC10 £15.00 Add To Cart Desmids of the English Lake District. - SP42 £6.00 Add To Cart