Image: haeckel desmidiea

Desmidiea:
Staurastrum furcatum (Brébisson) = Staurastrum furcatum (Brébisson ex Ralfs) Brébisson, single cell from above
Staurastrum vestitum (Brébisson) = Staurastrum vestitum Ralfs, mating
Staurastrum aculeatum (Ehrenberg) = Staurastrum aculeatum Meneghini ex Ralfs (3a: mating, from the side 3b: single cell, from above)
Staurastrum paradoxum (Meyen) = Staurastrum paradoxum Meyen ex Ralfs (4a: mating, from the side 4b: mating, from above)
Staurastrum spinosum (Brébisson) = Staurastrum furcatum (Brébisson ex Ralfs) Brébisson, spore immediately after mating
Micrasterias denticulata (Brébisson) = Micrasterias denticulata Brébisson ex Ralfs, dividing cell from above
Micrasterias trigemina (Haeckel) = Micrasterias trigemina E.H.P.A.Haeckel?, dividing cell from above
Micrasterias melitensis (Ehrenberg) = Micrasterias melitensis G.G.A.Meneghini / Micrasterias furcata C.Agardh ex Ralfs?, single cell from above
Spirotaenia condensata (Brébisson) = Spirotaenia condensata Brébisson ex Ralfs, single cell from the side
Closterium costatum (Corda) = Closterium costatum Corda ex Ralfs, single cell from above
Euastrum pecten (Ehrenberg) = Euastrum pecten C.G.Ehrenberg, single cell from above
Euastrum agalma (Haeckel) = Euastrum agalma E.H.P.A.Haeckel?, single cell from above
Euastrum apiculatum (Ehrenberg) = Micrasterias apiculata Meneghini ex Ralfs, single cell from above
- from the book sets: Art Forms in Nature (Kunstformen der Natur) - by Ernst Haeckel (1899-1904).

- من صور كتب: النماذج الفنية في الطبيعة، لـ إرنيست هيكل (نشر ما بين 1899-1904 م.)