lichen意思是地衣。

Thestonestairwaywascoveredwithlichen.那石级长满了地衣。Lichenisaforminwhichgreenorbluegreenalgaeandafunguslivetogethersymbiotically.地衣是一种绿藻或蓝藻与一种真菌共生的形式

Lichensadheretorocksandtreetrunks.地衣附着在岩石、树干上。Thereiscarpet-likelichenalloverthemoistcornerofthewall潮湿的墙角上布满了地毯般的绿色苔藓。PsychologicalFactorsandPersonalityCharacteristicsAnalysisofPatientswithOralLichenPlanus

口腔扁平苔藓患者的心理因素及人格特征分析NewRecordofLichenstoHebeiProvince,China(ⅰ)河北省地衣新记录（Ⅰ）TheresourcesofLichenanditsdistributionlawinGuizhou贵州地衣资源及其分布规律

Analysisofcompoundintwolichenplant两种地衣植物的化合物分析AnalysisonlifeformsoflichensinforestecosystemofnorthernXinjiang新疆北部森林生态系统地衣植物生活型的初步研究