FIGURES 18–23 in Taxonomic notes on desmids from the Netherlands IV, with a description of another five new species

FIGURES 18–23. LM photographs. 18–20. Cosmarium palatiniforme (from Holmers). 21–23. C. regnesiforme (21, 23 from Dwingelderveld, province of Drenthe, the Netherlands, 22 from type location). Scale bar = 10 µm ; Published as part of Van Westen, Marien C. & Coesel, Peter F. M., 2021, Taxonomic notes on desmids from the Netherlands IV, with a description of another five new species, pp. 240-248 in Phytotaxa 522 (3) on page 243, DOI:10.11646/phytotaxa.522.3.7, http://zenodo.org/record/5560451