目的 為閉鞘姜類藥材的鑒定和質(zhì)量標(biāo)準(zhǔn)提供依據(jù)。方法 對閉鞘姜、萵筍花和光葉閉鞘姜根莖進行生藥性狀、組織顯微和薄層色譜鑒別,對3種植物的葉表皮顯微特征進行比較。結(jié)果 根莖橫切面中柱鞘內(nèi)側(cè)維管束環(huán)導(dǎo)管的排列情況、導(dǎo)管中草酸鈣結(jié)晶的存在、皮層和木栓細胞中草酸鈣結(jié)晶的類型、薯蕷皂苷元的薄層色譜定性等是主要的鑒別特征。結(jié)論 3種藥材可通過以上研究結(jié)果加以鑒別。

Object To provide a basis for the identification and quality control of the crud drugs of Costus L.. Methods Morphological and histological characters of the rhizomes of Costus spectosus (Koen.) Smith, Costus lacerus Gagnep.and Costus tonkinensis Gagnep. were described and illustrated, respectively. TLC of the above drugs was finished. Microscopical characters of the epidemis of leaves of these species were also compared. Results The characters involving the vessel order in vascular bundle ring at the inner side of pericycle in the transverse section, calcium oxalate crystals occurred in the vessel, the characteristic calcium oxalate crystals in the cortex and cork cell and the TLC qualitative analysis for diosgenin, etc. are important for identification of Costus L.. Conclusion These three crude drugs can be identified by the above research results.