FIGURE 2 in Trachelomonas volzii vs T. dubia (Euglenophyceae)-one or two separate species? Study on similarities and differences of the species

FIGURE 2. Trachelomonas dubia and its variety according to different authors. A. Trachelomonas dubia by Svirenko 1914. B. T. dubia by Deflandre 1926. C. T. dubia by Popova 1951. D–I. T. dubia by Conrad & Van Meel 1952. J. T. dubia by Safonova 1965. K. T. dubia by Le Cohu 1974. L–M. T. dubia by Asauł 1975. N. T. dubia var. acuminata by Conrad &Van Meel 1952. O. T. dubia var. lata by Popova 1951. P. T. dubia var. lata by Asauł 1975. Q. T. dubia var. minor by Deflandre 1926. R. T. dubia var. pekinensis by Svirenko 1926. S. T. dubia var. ornata by Szabados 1939. T. T. dubia var. colliundulata by Caljon 1987. U. T. dubia var. crassiannulata by Shi & Jao 1998.