臺灣萼龍藤屬的新歸化物種──埃及萼龍藤（旋花科）

Distimake aegyptius (L.) A.R.Simões & Staples (Convolvulaceae), a newly naturalized species of Distimake in Taiwan

臺灣的萼龍藤屬（Distimake Raf.）有六種，包含兩種原生種：掌葉萼龍藤（D.quinatus（R.Br.）A.R.Simões & Staples）和葡萄葉萼龍藤（D. vitifolius（Burm.f.）Pisuttimarn & Petrongari，原稱掌葉菜欒藤）；四種歸化種：萼龍藤（D. tuberosus（L.）A.R.Simões & Staples）、七爪萼龍藤（D. dissectus（Jacq.）A.R.Simões & Staples）、蔓生萼龍藤（D. cissoides（Lam.）A.R.Simões & Staples）、五葉萼龍藤（D. quinquefolius（L.）A.R.Simões & Staples）。本文報導歸化於彰化、雲林和屏東低海拔開闊地的埃及萼龍藤，並提供該種的形態描述、彩色圖片及臺灣的萼龍藤屬植物檢索表以協助鑑定。

The genus Distimake Raf. in Taiwan comprises six species, including two native species - D. quinatus（R.Br.）A.R.Simões & Staples and D. vitifolius（Burm.f.）Pisuttimarn & Petrongari, and four naturalized species - D. tuberosus（L.）A.R.Simões & Staples, D. dissectus（Jacq.）A.R.Simões & Staples, D. cissoides（Lam.）A.R.Simões & Staples, and D. quinquefolius（L.）A.R.Simões & Staples. This study documents D. aegyptius（L.）A.R.Simões & Staples as a newly naturalized species in Taiwan found in low-altitude open areas across Changhua, Yunlin, and Pingtung. Morphological descriptions, color photographs, and an identification key for Distimake species in Taiwan areprovided to facilitate accurate identification.