Süßwasser-Algenarten in Einzeldarstellung VI.Spirogyra gaterslebensis,eine neue Art der Sektion Salamacis

Summary Spirogyra gaterslebensis nov. spec.Vegetative cells 18–21 × (88,5-) 109–182 (–223,5) µm, with replicate end walls. 1 Chromatophore, making (4-) 5–6 (–8) turns, rarely 2 Chromatophores with (1,5-) 2 (–3) turns. Conjugation lateral and scalariform; tubes formed ± by both gametangia; fertile cells abruptly inflated to 41,5–52,0 (–70,0) µm in diameter. Zygospores ellipsoid 26,0–34,0–45,0 (–52,0) × 41,5–47,0–78,0 (–96,0) µm; median spore wall yellow, finely punctate, on the poles sometimes with a few wrinkles.In the GDR in a road ditch between Gatersleben and Quedlinburg with shallow, slowly running water, together withVaucheria woroninianaHeeringV. debaryanaWoronin andV. sessilis (Vauch.) D.C. April–Mai 1967.

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. VI.Spirogyra gaterslebensis, Salamacis

Spirogyra gaterslebensis nov. spec. : , Vaucheria woroninianaHeering,V. debaryanaWoronin V. sessilis (Vauch.) D. C. 25. IV — 16. V. 1967. . .