Abstract
Formosan cinnamon bark on Osaka market and cinnamon on Formosan market were examined histologically in comparing with some bark specimens from Formosa, Cinnamomum pseudo-loureirii, and also collected in Japan, 'Yabunikkei', C. insularimontanum, syn. C. japonicum, 'Nikkei', C. sieboldii MEISN., syn. C. loureirii auct. Jap. non NEES, 'Kusunoki', C. camphora, 'Marubanikkei', C. daphnoides and 'Shiba-nikkei', C. daphnoides subsp. Doederleinii. Six kinds of marketed material named 'Yukei', ?? ??, 'Kohkei', ?? ??, 'Keitsu', ?? ??, 'Keishin', ?? ??, 'Keihi', ?? ?? and 'Hai-fang keitsu', ?? ?? ?? ??, were all C. cassia PRESL. Formosan cinnamon had three types, F-3 was identical with C. randaiense, F-2 presumed as C. osmophloeum and F-1 fitted to C. insularimontanum and/or C. sieboldii, which were not able to be distinguished in inner structure only. There was no material which has the same structure as C. pseudo-loureirii sent from Formosa. The difference of intraspecies in C. insularimontanum and in C. sieboldii was also presumed to be bigger than that found in these two species. Inner structure of another bark specimens was discussed in connection with external characters.
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