@Article{taiwania2003484213, AUTHOR = {Han-Yi Fu, Shiang-Jiuun Chen and Ling-Long Kuo-Huang}, TITLE = {Comparative Study on the Stinging Trichomes and Some Related Epidermal Structures in the Leaves of Dendrocnide meyeniana, Girardinia diversifolia, and Urtica thunbergiana}, JOURNAL = {Taiwania}, VOLUME = {48}, YEAR = {2003}, ISSUE = {4}, PAGES = {213-223}, URL = {https://taiwania.ntu.edu.tw/abstract/17}, ABSTRACT = {In this study, the morphology and distribution of the stinging trichomes and the related epidermal structures in the mature leaves of Dendrocnide meyeniana, Girardinia diversifolia, and Urtica thunbergiana are compared. On the adaxial and abaxial leaf surfaces, stinging trichomes, glandular, and non-glandular (hispid and pustulate) were observed. Among these studied species, the stinging trichome of Dendrocnide meyeniana is the shortest, but the density on the adaxial surface is the highest. In Girardinia diversifolia, the stinging trichomes are the longest, but the density is the lowest. The major elements of stinging cells of all the studied plants are silicon and calcium. In Dendrocnide meyeniana, the average silicon/calcium ratio is the highest, while the lowest silicon/calcium ratio was found in the stinging cells located on the veins of abaxial surface in Urtica thunbergiana. In Girardinia diversifolia, the amount and surrounding area of pedestal cells are the highest while in Dendrocnide meyeniana, however, are the lowest. On the leaf surface of Urtica thunbergiana, not any hydathode was observed, while pearl glands were only found in the leaves of Dendrocnide meyeniana. Calcium carbonate and oxalate depositions were found in all the studied stinging species.}, DOI = {10.6165/tai.2003.48(4).213} }