Silica-scaled chrysophytes from the Ukrainian Polissia Author Kapustin, Dmitry A. Author Gusev, Evgeniy S. K. A. Timiryazev Institute of Plant Physiology Russian Academy of Sciences, Botanicheskaya St. 35, 127276, Moscow (Russia) * dima _ kapustin @ outlook. com (corresponding author) Author Lilitskaya, Galina G. M. G. Kholodny Institute of Botany, National Academy of Sciences of Ukraine, Tereshchenkivska St. 2, 01601, Kyiv (Ukraine) Author Kulikovskiy, Maxim S. K. A. Timiryazev Institute of Plant Physiology Russian Academy of Sciences, Botanicheskaya St. 35, 127276, Moscow (Russia) text Cryptogamie, Algologie 2020 2020-10-26 20 12 121 135 journal article 246878 10.5252/cryptogamie-algologie2020v41a12 2a46d516-2edd-4de5-8ebb-404160da8fea 1776-0992 7819057 Mallomonas pillula f. valdiviana Dürrschmidt ( Fig. 3G ) DISTRIBUTION. — Bipolar ( Kristiansen & Vigna 1996 ; Kristiansen & Preisig 2007 ). REMARKS The scales of M. pillula f. valdiviana differ from the type form in having strong ribs forming a reticulum of irregularly-shaped meshes in the central area of the shield ( Kristiansen 2002 ).