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Roya (Charophyceae)

Roya anglica
Photograph from UTEX Algal Cultures (LB 934), University of Texas, Austin USA, posted online

Roya obtusa var. anglica from a drainage ditch along northern side of Akaiyaji-shoya-shokubutu-gunraku (Akai wetland), Aizuwakamatsu city, Fukushima Pref., Japan, May 4, 2008
Photograph by Y. Tsukii, Protist Information Server, Japan, posted online

Roya sp.
Modified from photograph by 'shadowshador' posted online

Roya obtusa (Breb. 1953) West and West 1896.
Modified from sketch by Ettl & Gaertner (1995) from the collection of Manfred Bölter, University of Kiel, DE

Ettl, H. & G. Gärtner 1995. Syllabus der Boden-, Luft- und Flechtenalgen. Gustav Fischer, Stuttgart

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