作者：郑维, 屈易寒, 唐丽艳, 苏锡钧, 罗宗龙, 宋寒冰, 唐松明
单位：大理大学农学与生物科学学院， 云南 大理 671003
关键词：地星科,地星状真菌,系统发育,分类学
地星属Geastrum作为地星科物种最丰富的分类单元，在全球广泛分布，该属物种成熟时多数呈星状子实体，是野外识别的关键形态特征。本研究基于形态学特征和分子系统学手段证实了采自中国云南大理的地星属真菌一新物种：苍山地星Geastrum cangshanense。苍山地星子实体呈散生至聚生状，成熟的子实体大小为1.2-2.3 cm，其形态呈浅囊状至拱形，外包被裂片7-8片，口缘纤毛状，呈宽锥形，顶端突出，比内包被颜色更深，界限明显，担孢子球形，大小为3.7-5.1 μm。本研究通过核糖体DNA (nrDNA)内部转录间隔区(ITS)和大亚基(LSU)序列，运用最大似然法与贝叶斯推断法进行了系统发育分析，结果表明苍山地星在地星属物种中形成了独立单支。本研究提供了采集自大理苍山的一个地星属物种形态特征图和分子系统发育分析树图。"/>template{display:none;}.mag-rich-xref-fn { cursor: pointer;}//长视频$(document).ready(function(){if($("#showLongArticleVideo") && $("#showLongArticleVideo").length && $("#showLongArticleVideo").length>0){mag_ajax_update({ele_id:'showLongArticleVideo',url:mag_currentQikanUrl() + "/CN/article/showLongArticleVideo.do?id="+$("#articleId").val()});}});//可视化图谱$(document).ready(function(){if($("#showArticle_knowledgeMap") && $("#showArticle_knowledgeMap").length && $("#showArticle_knowledgeMap").length>0){jQuery.getJSON("/Jwxb/CN/lexeme/existsCnctstInArticle.do?articleID="+$("#articleId").val(), null, function(json){if(json.result){$("#showArticle_knowledgeMap").show();}});}});$(document).ready(function(){var metaDataStr = $.trim($("#article_metaJson").val());if(metaDataStr!=''){eval("window.metaData="+metaDataStr);}if(window.metaData && (!window.metaData.authorNotesCommon_cn && !window.metaData.authorNotesCorresp_cn && window.metaData.authorNotes_cn)){window.metaData.authorNotesCommon_cn = window.metaData.authorNotes_cn;}if(window.metaData && (!window.metaData.authorNotesCommon_en && !window.metaData.authorNotesCorresp_en && window.metaData.authorNotes_en)){window.metaData.authorNotesCommon_en = window.metaData.authorNotes_en;}var _nlmdtdXml = $("#article_nlmdtdXml").val();var magDir = _nlmdtdXml.replace(/\/[^\/]+$/,'');window.metaData.magDir = magDir;new mag_vue({ el: '#metaVue', //dataUrl: mag_currentQikanUrl() + '/EN/article/getRichHtmlJson.do?articleId='+$("#articleId").val(), data:window.metaData, loading:true, doTextFun:function(text){ return doDataJsonText(text); 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来源：2026年第5期
《菌物学报》期刊编辑部
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