DieTrentepohlia-Arten Mährens und West-Schlesiens

Abstract

Es gibt verhaltnism~i~ig nur wenige A]gen, die nieht zeitlebens an das Vorhandensein yon flfissigem Wasser gebunden sind und die wahrend des grS~eren Teiles ihrer Vegetationszeit schon mit einem mehr oder minder grSlleren Feuchtigkeitsgehalt der Luft ihr Auslangen finden. Unter diesen Luftalgen nehmen unstreitig die Trentepohliaeeen den ersten P]atz ein, da alle derzeit zu diesar Chlorophycaen-Familie gestellten Arten a~rophil sin& Die Familie umfa~t die drei Gattungen: Trentepohlia Mart., Phycopeltis Mill. und Cephaleuros Kunze und ist vor allem dadurch gekennzeichnet, da(~ der Zellinhalt dUrch ein Lipoehrom (Haematochrom Cohns) braun gefi~rbt ist,.ferner dutch die kugelfi)rmigen Gametangien, namentlich "aber durch die gestielten Zoosporangien, die sieh vor dem Aussehwiirmen der Zoosporen in ihrer Giinze yon den Subsporangialzellen abl0sen.

DNA cloning demonstrates high genetic heterogeneity in populations of the subaerial green alga Trentepohlia (Trentepohliales, Chlorophyta)

“…The samples were observed under a light microscope Olympus BX 51 and microphotographs were taken with a digital camera Canon EOS 1100D adapted to the microscope. Morphological identification was based on descriptions and illustrations provided mainly by Printz (, ) and additional botanists, mainly early authors (Wiggers , Hildebrand , Gobi , Hansgirg , Hariot , , De Wildeman , Karsten , Brand , Fischer , Cribb , Thompson and Wujek ). The morphological characters used for the identification were: habit and color of the mat, substrate inhabited, thallus organization (relative development of prostrate vs. erect axes), shape of cells, width, and length of cells, branching pattern of erect axes, texture of cell wall, dimensions of reproductive structures and their shape and arrangement.…”

“…Obtaining sequences directly from field‐collected material is an easier and faster alternative, but unfortunately also highly error‐prone. Mats of Trentepohlia as observed in the field have always been perceived as populations consisting of one species, and as such their habit has played a major role in the establishment of several species (which were often described by old botanists in terms of color of the growth, smell, texture, thickness, specificity of habitat, and type of substrate; e.g., Fischer , Printz ). However, during our observations of field collections of Trentepohlia , we repeatedly observed the presence of two or more different morphotypes in the same mat.…”

Massive Trentepohlia-Bloom in a Glacier Valley of Mt. Gongga, China, and a New Variety of Trentepohlia (Chlorophyta)

“…Consequently, they are easy to recognize by the trained eye because of their characteristic appearance that this species forms deep red velvety covering with irregular vertical streaks [6] . This species is extensively distributed in tropical and temperate regions such as New Zealand [8] , India [9] , Japan [10] , Europe [11] , and the USA [12] .…”