臺灣新歸化莧科新紀錄屬植物──砂莧

Allmania nodiflora (L.) R. Br. (Amaranthaceae), a Newly Naturalized Genus and Species in Taiwan

本文記錄一種臺灣新歸化的莧科新紀錄屬植物－－砂莧（Allmania nodiflora（L.）R. Br.），原產於亞洲熱帶地區，被發現歸化於臺灣中部低海拔地區。本文除提供其分類特徵描述、彩色照片、花粉粒之掃瞄式電子顯微鏡照片以及生態分布外，並提出台灣產莧亞科植物分屬之檢索表，以利本屬植物之辨識。

Allmania nodiflora (L.) R. Br. is native to tropical Asia, and was found as an alien species in central Taiwan. This is a new record of the genus and species of Amaranthaceae in Taiwan. Description, photographs, scanning electron microscope (SEM) photographs of pollen grains and the species’ecological distribution are described. A key to the species of Amaranthoideae of Taiwan is also provided to aid identification.