臺灣產水生單子葉植物之分類研究

Abstract

水生單子葉植物是一群具有相同習性，生長在水中或含飽和水分的土壤上，經過一段長時期才能完成整個生活史的一群特殊植物。本報告以台灣單子葉植物作為研究對象，目的在重新整理系統分類上的混亂，並且探討其一般形態的特徵，莖的解剖及環境改變後引起的變異現象，提供水生植物鑑定上的依據。 本篇報告共列出台灣水生單子葉植物20科，51屬、83種、3亞種及5變種，其中Halodule uninervis係本省新紀錄。本省水生單子葉植物的檢討尚屬首次，對於科的界限及種類的檢索、分佈、命名上的討論等均予列舉，大部分種類除描述外，其形態並詳細繪出，對於一向少有人注意的花、果實、種子的形態特加觀察。按其習性、生活型分別列出台灣產水生單子葉植物，提出一可行系統分類。

Aquatic Monocots are monocotyledonous which live submersed under water or grow emersed in soil covered with water or grow in water-logged soil. My purpose in this study was investigate the mophological characters of aquatic Monocotyledons growing in Taiwan with an object of finding reliable distinguishing characters that could be used for identification and classification of these plant. This is the first complete report on the aquatic Monocots of Taiwan. According to my investigations, there are twenty families, fifty-one genera, eighty-three species, three subspecies and five varieties occuring on this island. One new record is listed which is Halodule uninervis. The characteristics of each family and the description of each genus is given (excepting the Gramineae, Cyperaceae, Commelinaceae, Zingiberaceae, Eriocaulaceae and Juncaceae). Keys have been prepared for all families, genera and species. The general distribution of species and locality records are cited.