Abstract

We described the plant, Antidesma pleuricum Tul. (Euphorbiaceae), a neglected species in the Flora of Taiwan. After a review of relavant literature and specimens of Taiwanese and Philippine’s Antidesma spp., A. hontaushanense C. E. Chang was treated as a synonym to A. pleuricum. A distributional map and color photographs of A. pleuricum in Lanyu, and both image of the type specimen and plate of A. hontaushanense are provided in this paper.

中文摘要

本文描述大戟科植物：紅頭五月茶 (Antidesma pleuricum Tul., Euphorbiaceae) 此一 臺灣植物誌疏漏種，並於檢閱臺灣及菲律賓產五月茶屬植物相關文獻及標本後，將紅頭山 五月茶 (A. hontaushanense C. E. Chang) 處理為紅頭五月茶的同物異名。本文並提供紅頭五 月茶的蘭嶼分布圖，彩色照，以及紅頭山五月茶的模式標本照片及圖版以供參考。

Keyword: Antidesma hontaushanense, Antidesma pleuricum, Euporbiaceae, Taxonomy, Taiwan.