Aulacomnium аrenopaludosum Boiko sp. nov. (Bryopsida, Aulacomniaceae) – a new moss species from steppe zone of Ukraine
Keywords:
Aulacomnium аrenopaludosum Boiko sp. nov., Steppe zone, Ukraine.Abstract
A new for science species of mosses Aulacomnium аrenopaludosum Boiko is described. The turfs are small, dense, yellow-green. The stem is erect, branched, rarely simple, to 0-,5-1,5 cm high. There are always many pseudopodia with leaf-like gemmae gathered together on their tops. Rhizoid tomentum is only in the lower part of a stem – up to 3-5 leaves, brownish. The leaves are decurrent (up to 7 cells), turned away only in the middle part – to 2/3 of length, in the top third are flat, with acuminate or integrate, unevenly cutting or toothed top. Rib does not reach a few cells up to the leaf top, sligthly enlarged at the base, becomes thinner to the top. Old leaves consist of more collenchyme cells. In the lower cornes of the leaf base, cells are not coloured, transparent, in old leaves only occasionally somewhat dirty-yellow coloured, often only one cell is coloured. Cells are situated in 1-3 rows along the leaf edge from leaf base upward. Vegetative propagation occurs by leaf-like gemmae. Sterile species, sporogonia are unknown. Collected from the southern vicinity of the Halytsynove village, Zhovtnevyi district, Mycolaivsky region and in Burcutska forest area, Golopristanskiy district of Khersonskaya region, Ukraine. The moss grows on plants’ remains in small marshes with Betula borysthenica Klokov and bush willows Salix sp. The new species differs from the close related species – Aulacomnium palustre (Hedw.) Schwaegr. и Aulacomnium androgynum (Hedw.) Schwaegr.– by stable characters with habitual similarity to Aulacomnium androgynum.
References
БАЧУРИНА Г.Ф., МЕЛЬНИЧУК В.М. Флора мохів Української РСР. Вип. 3. – Київ: Наук. думка, 1989. – 176 с.
БОЙКО М.Ф. Чекліст мохоподібних України. – Херсон: Айлант, 2008. – 232 с.
БОЙКО М.Ф., БОЙКО П.М., ЛІЧИНКІНА Н.А., МЕЛЬНИКР.П., МОЙСІЄНКО І.І., ХОДОСОВЦЕВ О.Є. Нова знахідка Betula borysthenica Klok. & Zoz. // Укр. ботан. журн. – 2005. – Т. 62, № 3. – С. 396-398.
ИГНАТОВ М. С., ИГНАТОВА Е. А. Флора мхов средней части европейской России. Т.1: Spagnaceae – Hedwigiaceae. – Москва: КМК., 2003. – С. 1-608 с. (Arctoa, т.1, прилож. 1).
МЕЛЬНИЧУК В. М. Определитель лиственных мхов средней полосы и юга Европейской части СССР. – Киев: Наук. думка, 1970.– 442 с.
РЫКОВСКИЙ Г.Ф., МАСЛОВСКИЙ О.М. Флора Беларуси. Мохообразные / В 2 т. Т.1. – Минск: Тэхъналогия, 2004. – 437 с.
САВИЧ-ЛЮБИЦКАЯ Л.И., СМИРНОВА З.Н. Определитель листостебельных мхов СССР. Верхоплодные мхи. – Л.: Наука, 1970. – 826 с.
BRYOPHYTE flora of North America. – St Louis: Missouri Botanical Garden, 2008. http://www.mobot.org/plantscience/ BFNA/bfnamenu.htm.
FRAHM J.-P. Laubmoose // RleineKryptogamenflora. B.IV. Die Moos- und Farmpflancen Europas. – Stutgart, Jena, New York: Gustav Fischer Verlag, 1995. – P. 121-305.
FRAHM J.-P., FREY W. Moosflora. – Stuttgart : Ulmer, 2004. – 537 s.
NYHOLM E. Illustrated flora of Nordic mosses. Fasc. 4. – Copenhagen & Lund: Nordic Brylogical Society, 1998.
SMITH A.J.E. The mosses flora of Britain and Ireland, 2 end. – Cambrydge: Cambrydge University Press. – 2004.
WATSON, L., DALLWITZ, M.J. 2005 onwards. The moss families of the British Isles. Version: 21st June 2009. http://delta-intkey.com’
