Skip to main content Skip to main navigation menu Skip to site footer
Type: Article
Published: 2018-03-23
Page range: 83–103
Abstract views: 27
PDF downloaded: 1

The Ulva flexuosa complex (Ulvaceae, Chlorophyta): an updated identification key with special reference to the freshwater and hyperhaline taxa

Department of Hydrobiology; Institute of Environmental Biology; Faculty of Biology; Adam Mickiewicz University, Poznań; Umultowska street No 89, PL61 – 614 Poznań, Poland
green algae macroalgae salinity morphology Ulvales Algae

Abstract

The paper presents an updated version of the phycological key which includes additional morphological features, so as to facilitate identification of taxa (subspecies and variants) from the Ulva flexuosa complex, spanning populations from ecosystems with varying degrees of salinity. Data were collected in several locations in central and western regions of Poland. Only two subspecies were observed in inland water ecosystems: U. flexuosa subsp. pilifera, and subsp. paradoxa. Another taxon—U. flexuosa subsp. flexuosa, inhabits only brackish waters of costal lakes and estuaries. Two further taxa, namely
U. flexuosa var. linziformis and subsp. biflagellata are found only in marine ecosystems and do not tend to settle in freshwater habitats.