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Each valve of <i>Asteroplanus karianus</i> comb. nov. has punctate ocelli at both basal and distal poles and a single rimoportula with a tube projecting from the inner surface of the distal pole. In these respects the species resembles <i>Asterionellopsis socialis</i> but the feature that appears to be unique is the double scutal flap of silica that partly encloses a chamber on the outer surface of the valve. The possible function of this structure and the systematic position of the new genus are both discussed.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"The transfer of <i>Asterionellopsis kariana</i> to the new genus <i>Asteroplanus</i> (Bacillariophyceae), with reference to the fine structure","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2024-12-10 01:33:17.368041","timezone_type":1,"timezone":"+01:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":null,"OtherDescriptors":null,"Notes":null,"AnaPub":1997,"MonPub":null,"DateUpdate":"2008-01-24","DateCreate":"2008-01-24","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:A1997XE67800005","VABBcode":null,"OpenAcc":0},"refs":null,"anarec":{"AnaID":119036,"PubliDate":1997,"Pagination":"47-57","XtraPublOfAnaID":null,"ISBN":null,"Volume":"65","Issue":"1-4","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":43454,"SerRR":"Nova Hedwigia. 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