台灣新歸化唇形科植物－－腺萼鼠尾草

Salvia Occidentalis Sw.-A Newly Naturalized West Indian Sage in Taiwan

腺萼鼠尾草（Salvia occidentalis Sw.）原產於美洲的加勒比海地區、佛羅里達、墨西哥、中美洲和南美洲。本種為單葉，花萼外表面密生腺毛，花冠藍色，喉部白色具藍色條紋等特徵與省產的其他種類明顯不同。近年來發現歸化於高雄市半屏山地區道路邊緣荒廢地。本文報導其花粉特徵為6溝花粉，表面具2層網狀紋飾。並說明其分類特徵、生育地環境、分布和共同伴生之植物。

Salvia occidentalis Sw., belonging to the mint family, is distributed in tropical America. This species is characterized by its simple leaf, calyx densively covered with glandular hairs, and blue corolla with white blue-streaked throat. In a recent plant survery, we found a wild population of Salvia occidentalis in Pan-ping-shan area of Kaohsiung City in southern Taiwan. A detailed description with color photographs, SEM microphotographs of pollen grains and habitat information is provided in this paper.