细叶与姬竹叶石斛  转到中国兰科植物志

Dendrobium hancockii  分类来源:中国植物志

细叶石斛(中药志) 

Dendrobium hancockii Rolfe in J. Linn. Soc. Bot. 36: 11. 1903 (1, Jan.); Kraenzl. in Engler, Pflanzenr. 45 (IV, 50. II. B. 21): 63. 1910; Schltr. in Fedde Repert. Sp. Nov. Beih. 4: 210. 1919; S. Y. Hu in Quart. J. Taiwan Mus. 26 (1, 2): 156. 1973; 泰岭植物志1 (1): 425. 1976; 中国高等植物图鉴 5: 698. 图8226.1976; Z. H. Tsi in Acta Phytotax. Sin. 18 (4): 438. 1980; Z. H. Tsi, S. C. Chen et K. Mori, Wild Orch. China: 75, pl. 89. 1997; 中国兰花全书: 164. 图6-12 (3). 1998. ——D. odiosum Finet in Bull. Soc. Bot. France 50: 372, t. 12 (fig. 1-10). 1903 (26, Juin); Schltr., l. c. p. 213; Kraenzl., l. c. p. 228; S. Y. Hu, l. c. p. 159. 

Epiphyticontreetrunksinmountainforests,lithophyticonrocksinmountainvalleys;700-1500m.SGansu,NWGuangxi,SGuizhou,Henan,SEHubei,SEHunan,Shaanxi,SSichuan,NEandSEYunnan[NVietnam].

细叶

姬竹叶

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Stemserect,cylindricorsometimeswithseveralnodesdilatedandfusiformabovebase,to80cm,2-20mmindiam.,rigid,usuallybranching,internodesto4.7cm,withlongitudinalchannelsorstripes,deepyellowororangewhendry,glossy.

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Leavesoften3-6,alternateonmainstemandupperpartofbranches,linear,2.5-7×0.3-0.6(ormore)cm,withleatherysheathsatbase,apexobtuseandunequallybilobed.

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Inflorescence1-2.5cm,1-or2-floweredraceme;peduncle5-10mm;floralbractsovate,ca.2mm,membranous,apexacute.Pedicelandovarypaleyellowishgreen,12-15mm;ovaryslightlydilated;manyclones±cleistogamous.Normalflowersslightlyfragrant,spreading,thicklytextured;sepalsandpetalsgoldenyellow,lipgoldenyellow,laterallobeswithafewredstriationsinside,diskoftenpalegreen.Dorsalsepalovate-elliptic,(10-)18-24×(3.5-)5-8mm,7-veined,apexacute;lateralsepalsovate-lanceolate,ca.aslongasdorsalsepal,butslightlynarrower,7-veined,apexacute;mentumbroadlyconic,ca.5mm.Petalsobliquelyobovateorsubelliptic,ca.aslongasdorsalsepalandbroader,7-veined,apexacute;lip10-20mmlongandwide,withabasalcallus,middle3-lobed;laterallobesembracingcolumn,±subrounded,apexrounded;mid-lobesuboblateorensiform-rounded,acute;diskwithshort,densepapillaebetweenlaterallobesandextendingtomid-lobe.Columnca.5mm,baseslightlydilated,footca.6mm;columnteethsubtriangular,apexshortandobtuse;anthercapobliquelyconic,surfacesmooth,frontwith3ridges,frontmargindenticulate.


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