%0 Journal Article %A Tsung-Hsin Hsieh and Tseng-Chieng Huang %T Notes on the Flora of Taiwan (33)-Revision on the genus Clinopodium L. in Taiwan %D 1998 %J Taiwania %V 43 %N 2 %P 108-115 %U https://taiwania.ntu.edu.tw/abstract/109 %X The genus Clinopodium of Taiwan is revised on the basis of morphological and anatomical characters, and the chromosome numbers. Three species and one new variety are recognized, i.e. C. gracile (Benth.) O. Kuntze, C. chinense (Benth.) O. Kuntze, C.laxiflorum (Hayata) Mori, and C. laxiflorum (Hayata) Mori var. taiwanianum Hsieh & Huang, var. nov. The species, C. gracile differs conspicuously from the others in having one vascular bundle in petiole; minute bract is shorter than the pedicel; the nutlet containing discoid surface; and the chromosome number being 2n= 18; while the others have two vascular bundles in petiole; the bract is longer than the pedicel; the nutlet surface is ornamented with shallow and well defined ridges; and the chromosome number is 2n= 38. %M doi:10.6165/tai.1998.43(2).108