title: [Study on seed morphology of the section Cruciata Gaudin].
abstract: OBJECTIVE
  To provide a scientific evidence for the identification of the section Cruciata Gaudin.
  
  
  METHODS
  Seed morphology of the section Cruciata Gaudin in different regions from Gansu were studied by means of scanning electronic microscopy (SEM).
  
  
  RESULTS
  The seeds of section Cruciata Gaudin had relative conformability in terms of shape,size and ornamentation. But the reticulate cell of Gentiana dahurica was obviously wider than those of other species.
  
  
  CONCLUSIONS
  This study provides some useful information for classification and identification of section Cruciata Gaudin.
authors: Anhui College of Traditional Chinese Medicine, Wuhu 241000, Gansu. ian-wang@tom.com
authors: Yi-qi
authors: YQ
authors: Wang
authors: Rong-bin
authors: RB
authors: Wang
authors: Cun-qin
authors: CQ
authors: Wang
authors: Li-Sha
authors: LS
authors: Liu
authors: Xi-ling
authors: XL
authors: Zhang
mesh_terms: D002681:China; D030012:Gentiana / Q000145:classification / Q000254:growth & development / Q000648:ultrastructure*; D008855:Microscopy, Electron, Scanning; D019441:Plant Epidermis / Q000648:ultrastructure; D010946:Plants, Medicinal / Q000254:growth & development / Q000648:ultrastructure*; D011786:Quality Control; D012639:Seeds / Q000648:ultrastructure*; D013045:Species Specificity