title: [Pharmacognostical identification of the leaf of Uncaria hirsuta Havil].
abstract: OBJECTIVE
  To perform a pharmacognostical study of the leaf of Uncaria hirsuta Havil.
  
  
  METHODS
  The specimens of Folium Uncariae Hirsutae were collected for studying its characteristics, microscopic appearance and thin-layer chromatography.
  
  
  RESULTS
  The leaf of Uncaria hirsuta Havil was characterized by numerous multicellular non-glandular hairs, 2 lines of palisade tissue, a diacytic type of stoma, and clustered crystals in its parenchyma. At least two kinds of alkaloids identical to the control were identified in the specimens.
  
  
  CONCLUSIONS
  The results can be used as the evidence for identification, formulation of the quality-control standards as well as further utilization of Folium Uncariae Hirsutae.
authors.affiliation: College of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, China.
authors.forename: Xing-xing
authors.initials: XX
authors.lastname: Chen
authors.forename: Hong-wei
authors.initials: HW
authors.lastname: Zhang
authors.forename: Shuai
authors.initials: S
authors.lastname: Shao
authors.forename: Zhen-biao
authors.initials: ZB
authors.lastname: Liang
authors.forename: Zhi-xian
authors.initials: ZX
authors.lastname: Mo
mesh_terms: D000470:Alkaloids / Q000302:isolation & purification*; D002855:Chromatography, Thin Layer / Q000379:methods; D010598:Pharmacognosy / Q000379:methods*; D018515:Plant Leaves / Q000033:anatomy & histology / Q000737:chemistry*; D032070:Uncaria / Q000737:chemistry*
chemical_list: D000470:Alkaloids