10种楠属植物叶形态特征及其分类学意义

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中图分类号：S792.24 文献标志码：A 文章编号：1673-923X（2026）02-0089-11

Abstract：【Objective】Throughanin-depthstudyoftheleafmorphologyof1speciesofPhoebe，toprovideatheoreticalbasisforthe identifcationadclasifcationofoebe.【etod】Troughmorpologicalobseationcombedwithopticalmicrosopyaing electronicooydasooicaeofoosopicactis leafepidemis，ndanatomicalstructurecharacterisicsofleaves wasdeeplyinvestigated【Result】1）hepenotypictraitsoflaves exhibitsignieongtaieaouet-sle mediumleaves，andsmalleaves.Withinspeciesvariationinleafpolymorphictraitswithmidribaboveandbelowistable.P.zhan P.bourneiand P. hui present the morphological characteristics of the midrib being sunken onthe upper surfaceand protrudedon the lowerurface.Tebacksoflaveseinndpetiolesofthe10speciesallavehirstoaryingdegreswithtemotiicant diferencebeingteiiessontebacksofeaves;2）anticlinalwallofeuppeepidesarestraighttorcdndtoeof thelowerepidermisare iregularandshalowlywavyStomataareonlydistributedonthelowerepidermis.Thestomatal morphology issimilaramong diffrent species，butthestomataldensityvariessignificantly，withthehighestdensityin P. chekiangensis;3） The cuticularoramentationoftheupperepidermisandthewaxyamentationoftheowerepidermisardiverseanddiferamongspecies. Epidermalhairsaredistributedonteleafepideisofallspecies，allinguniceluarirs，andteensityofepideralisows significant diferenceamongdiferentspecies;4）Theanatomicalstructurerevealsthatthelavesofthe1Phoebespecies areall bifacialeavesposdofaideissohllssediseolesempodoideislle andphloem.Tereaesifatdferenesinthlisadespongatioeafticesndtestrbutioposiosofucileels amongdifferentspecies.Conclusion】Theleafmorphologyandanatomicalcharacteristcsofthe10Phoebespeciesaresignificantly different，whichcan provide important reference bases forthe identification and classification of Phoebe.

Keywords：Phoebe;leafmorhology;micromorphologicalfeature;eafanatomicalstrcture;clasificationofidentifiation

樟科Lauraceae楠属Phoebe植物在全世界约有94种，广泛分布于亚洲及热带美洲。（剩余14933字）