FIGURE 1 in Trachelomonas volzii vs T. dubia (Euglenophyceae)-one or two separate species? Study on similarities and differences of the species

FIGURE 1. Trachelomonas volzii and its variety according to different authors. A. Trachelomonas volzii by Lemmermann 1904. B. T. volzii by Walton 1915. C. T. volzii by Conrad &Van Meel 1952. D–E. T. volzii by Asauł 1975. F–G. T. volzii by Islam & Muniruzzaman 1981. H. T. volzii by Vetrova 1984. I. T. volzii var. australis by Conrad & van Meel 1952. J. T. volzii var. cylindracea by Playfair 1915. K. T. volzii var. cylindracea by Prowse 1958. L. T. volzii var. cylindracea by Conrad &Van Meel 1952. M. T. volzii var. cylindrica by Yamagishi 1992. N. T. volzii var. intermedia by Playfair 1915. O. T. volzii var. intermedia by Conrad &Van Meel 1952. P. T. volzii var. pellucida by Conrad & van Meel 1952. Q. T. volzii var. pellucida by Compére 1975. R–S. T. volzii var. pellucida by Islam & Muniruzzaman 1981. T. T. volzii var. sulcata by Playfair 1915. U. T. volzii var. inflata by Conrad &Van Meel 1952. V. T. volzii var. acidophila by Bourrelly 1961; W–X. T. volzii var. acidophila by Islam & Muniruzzaman 1981.