台灣之蝶形花亞科及其分佈

Abstract

本文共處理台灣蝶形花亞科59屬，172分類群，包括167種，8亞種及17變種。新增加一未會記載之歸化種一擬大豆(Calopogonium mucunoides Desv.)並接受Lakey（1981）所提升之屬一瓜哇大豆屬(Neonotonia)。首次採到圓菱葉山螞蝗(Desmodium podocarpum subsp. podocarpum)。種群之處理方面，Doliches rhombifolia (Hay.) Hosolcawa合併到Vignapilosa Bentham． 除分類處理外，對分佈狀況亦加以探討。總共分析144分類群之分佈，發現台灣本島在海拔700公尺以下之分類群佔68.4％，海拔1800公尺以下佔92.6％。海拔700公尺以下之水準分佈區域可分北區（嘉義縣、花蓮縣及以北各縣），南區（台南、高雄、屏東（恆春半島除外）、台東等四縣），恆春半島（楓港溪、阿塱衛溪以南）等三區。

A total of 59 genera and 172 taxa, including 167 species, 8 subspecies and 17 varieties, are taxonomically treated here. One newly naturized plant, Calopogonium mucunoides Desv., is reported. One generic name, Neonotonia which never reported in Taiwan, is pointed out. The specimen of Desmodium podocarpum subsp. podocarpum was collected by the author for the first time. Dolichos rhombifolia (Hay.) Hosokawa is transfered to a synonyme of Vigna pilosa Bentham. Besides the taxonomic treatment, the distribution is also analyzed. Two distributional patterns are divided on the basis of altitudinal difference. Among 144 taxa in Taiwan, It occupies 68.4% for thoese taxa below the elevation of 700m and 92.6% below the elevation of 1800m. Then it is subdivided by three zones which are North (Chiayi County, Hualien County and the counties northern them), South (Tainan County, Kaoshiung County, Pingtung County (except Hengchun Peninsula), Taitung County) and Hengchun Peninsula (South of Fongkanshi and Alanweishi), for taxa below the elevation of 700m.