Mallomonas papillosa K.Harris & D.E.Bradley emend. K.Harris

Kapustin, Dmitry A., Gusev, Evgeniy S., Lilitskaya, Galina G. & Kulikovskiy, Maxim S., 2020, Silica-scaled chrysophytes from the Ukrainian Polissia, Cryptogamie, Algologie 20 (12), pp. 121-135 : 130

Mallomonas papillosa K.Harris & D.E.Bradley emend. K.Harris

( Fig. 3E, F )

DISTRIBUTION. — Cosmopolitan ( Kristiansen 2000).

REMARKS

Besides typical scales with a shield densely covered with papillae ( Fig. 3E ), we observed scales with nearly smooth shields ( Fig. 3F ). Similar nearly smooth scales were observed by Balonov (1978) from rivers in the Yaroslavl Region in Russia, Péterfi et al. (1998) from the bog-lake Baláta-tó in Hungary, and Gusev et al. (2019b) from rivers in Nizhniy Novgorod in Russia. Since we recorded the different scales from the different samples they may represent two separate taxa.

Figures

FIG. 3. — Mallomonas Perty taxa from the Ukrainian Polissia: A, Mallomonas matvienkoae Asmund & Kristiansen, SEM; B, Mallomonas ouradion K.Harris & D.E.Bradley, SEM; C, Mallomonas cf. pseudomatvienkoae B.Y.Jo, W.Shin, H.S.Kim, Siver & R.A.Andersen, SEM; D, Mallomonas paludosa Fott; E, F, Mallomonas papillosa K.Harris & D.E.Bradley emend. K.Harris, TEM (E) and SEM (F); G, Mallomonas pillula f. valdiviana Dürrschmidt, SEM; H, Mallomonas punctifera Korshikov, SEM; I, Mallomonas pugio D.E.Bradley, SEM; J, Mallomonas rasilis Dürrschmidt, SEM; K, L, Mallomonas schwemmlei Glenk emend. Glenk & Fott, body (K) and apical (L) scales, SEM; M, Mallomonas striata Asmund, SEM; N, Mallomonas teilingii W.Conrad, SEM; O, Mallomonas teres Nemcova & Kapustin, SEM; P, Mallomonas cf. tonsurata Teiling, SEM. Scale bars: A-F, I-M, O, P, 1 µm; G, 0.5 µm; H, N, 2 µm.