臺灣茄科新歸化植物－－毛果茄

Solanum viarum Dunal (Solanaceae) a Newly Naturalized Plant to Taiwan

毛果茄（Solanum viarum Dunal），原產於南美洲，最近被發現於臺灣低至中海拔，為台灣新歸化植物。毛果茄外觀上與刺茄（S. capsicoides All.）相似，但刺茄之種子為圓盤狀具明顯環翅；毛果茄之種子為雙凸透鏡形，不具翅。本文描述其形態特徵、地理分布及生育地環境，並提供彩色圖片與線畫圖以資辨識。

Solanum viarum Dunal is native to South America. Recently, it was found as a newly naturalized species to low to medium elevations in Taiwan. S. viarum is morphologically fairly similar to S. capsicoides All, but the seeds of S. capsicoides are winged whereas those of S. viarum are not. This paper provides its taxonomic description, illustration, distribution map, and photographs for helping the identification.