2007 年 58 巻 1 号 p. 33-38
Three new taxa of the Piperaceae, Piper betloides A. Chaveerach & A. Tanomtong, P. pedicellatum var. eglandulatum A. Chaveerach & P. Mokkamul and P. thomsonii var. trichostigma A. Chaveerach & R. Sudmoon are described and illustrated. Morphological differences between the new species and related taxa are also discussed.