Abstract

The relationships among Ajuga formosana Hay., Paraphlomis gracilis (Hemsl.) Kudo and P. parviflora Wu & Li have been confusing for a long time. Kudo (1929) treated A. formosana as conspecific with P. gracilis. We accept the generic name Paraphlomis, and we found that the Taiwan specimens so named P. gracilis are different form those of mainland Chinese ones on the basis of their external and pollen morphology and geographical distribution. Therefore, we propose a new combined name, i. e., P. formosana (Hay.) Hsieh & Huang, comb. nov. for the Taiwan plants. The name of P. parviflora was based on the specimen collected by Suzuki and is considered to be conspecific th P. formosana. The chromosome number of P. formosana (2n = 34) is also reported.

中文摘要

根據模式標本比對說明 Ajuga formosana Hay. 和 Paraphlomis parviflora Wu & Li (小花假糙蘇) 為同一種植物，前者發表較早為有效的合法名。作者根據花部特徵將 Ajuga formosana 新組合成 Paraphlomis formosana (Hay.) Hsieh & Huang, comb. nov. (台灣假糙蘇)。根據外部形態及花粉形態，說明產於台灣的台灣假糙蘇和產於中國大陸的纖細假糙蘇 (P. gracilis (Hemsl.) Kudo) 為不同的種。本文並首次報導台灣假糙蘇的染色體數目 2n = 34。

Keyword: Lamiaceae, Paraphlomis formosana, P. gracilis, P. parviflora. 唇形花科，台灣假糙蘇，纖細假糙蘇，小花假糙蘇。