Pharmacognosy Identification Study on Stem and Leaf of Passiflora edulis

Objective:To study the pharmacognostic characteristics on the stem and leaf of Passiflora edulis.Method:The morphological identification and microscopic identification were adopted.Result:In the cross section of the stem,a few clusters of calcium oxalate were observed in the cortex.Many clusters of calcium oxalate were found in the phloem,with fibers disseminated outside the phloem.Single vessel and 2-3 vessels together were observed in the xylem.The pith was quite wide,equal to 3/4 of the radius of the cross section.In the cross section of the leaf,it could be observed that collateral bundles were interval ring-shaped in the main vein vascular,and some square crystals in the parenchyma cells.Result:Many spiral vessels,fibers,clusters of calcium oxalate and a few square crystals were found in the powder.Conclusion:The plant has obvious pharmacognostic characteristics.These results as above can be used for identification and further application of P.edulis.