High Quality Content by WIKIPEDIA articles! Polysporangiophytes, also called polysporangiates or more formally Polysporangiophyta, are plants in which the spore-bearing generation (sporophyte) has a structure of branching stems (axes) terminating in sporangia (hence the name of the group which literally means "many sporangia plant"). The clade includes most land plants (embryophytes) except for the bryophytes (liverworts, mosses and hornworts) whose sporophytes are always unbranched. The definition is independent of the presence of vascular tissue. All living polysporangiophytes also have vascular tissue, i.e. are vascular plants or tracheophytes. Fossil polysporangiophytes are known which do not have vascular tissue and so are not tracheophytes. Данное издание представляет собой компиляцию сведений, находящихся в свободном доступе в среде Интернет в целом, и в информационном сетевом ресурсе "Википедия" в частности. Собранная по частотным запросам указанной тематики, данная компиляция...

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