RT Journal Article ID 3f53907d08586511 A1 Vinogradova, O. M. T1 Representatives of Stigonematales in the Flora of Ukraine: Diversity, Ecology, and Taxonomic Position JF International Journal on Algae JO IJA YR 2016 FD 2016-06-01 VO 18 IS 1 SP 67 OP 80 K1 Stigonematales K1 Capsosira brebissonii K1 Pulvinularia suecica K1 Fischerella major K1 Stigonema intermedium, diversity K1 ecology K1 taxonomy K1 rare species K1 Ukraine AB The information about the diversity of representatives of the order Stigonematales Geitler in flora of the Ukraine is analyzed in light of modern ideas on taxonomy, ecology, phylogeny, and the position of true branching forms in the system of heterocytous cyanoprocaryotes. Critical revision of historical and contemporary data on their findidngs in Ukraine revealed 14 species of true branching cyanobacteria belonging to 7 genera and 4 families of the monophyletic group Nostochophycidae. Hapalosiphonaceae is the most diverse (3 genera) followed by Stigonemataceae (2), Capsosiraceae and Symphyonemataceae (one genus and one species in each). Genus Stigonema C. Agardh ex Bornet & Flahault in Ukraine is represented by eight out of ten species found in Europe; other genera have one species each. Most of the revealed species are subaerophytes, usually occurring in marsh ecosystems, three are freshwater species, and two species (Brachytrichia quoyi Bornet & Flahault and Mastigocoleus testarum Lagerh.) dwell in the seas on limestones; the latter refers to a group of boring euendoliths. In Ukraine, very rare species were found: Capsosira brebissonii Kütz. ex Bornet & Flahault and Pulvinularia suecica Borzi are known in the world by single finds; Fischerella major Gomont was recorded in Europe only three times. Stigonema intermedium N.V. Kondrat. until now is known only from several localities in Ukraine; it has been described as the inhabitant of drying up sites of hypnum-sedge bogs in Western Polesie and later found again on dripping rocks in the Crimean Mountains. Ukrainian nature is rich in landscapes with favorable habitats for true branching Cyanoprokaryota, which allows consideration, given the list of species is a preliminary one. PB Begell House LK https://www.dl.begellhouse.com/journals/7dd4467e7de5b7ef,16e8242f2c6517b4,3f53907d08586511.html