台灣產狸藻科（Lentibulariaceae）僅有狸藻屬（Utricularia），植物體形態可因不同棲地有大幅度的變異，而造成種的認定與鑑定困難。本研究探討狸藻屬的形態特徵，配合野外觀察及溫室培養，以瞭解環境因素對外部形態可能的影響，包括走莖、假根、葉、花、果、花粉、種子與捕蟲囊等的形態，並進一步探討種間捕蟲囊腺毛特徵及對於種的分類用途。
研究結果顯示台灣產狸藻科有7種，分別為黃花狸藻（U. aurea Lour.）、南方狸藻（U. australis R. Br. ）、挖耳草（U. bifida L.）、長距挖耳草（U. caerulea L.）、絲葉狸藻（U. gibba L.）、圓葉狸藻（U. striatula Sm.）與紫花挖耳草（U. uliginosa Vahl）。此外，將小狸藻（U. minor L.）與北美狸藻（U. inflata Walter）列為疑問種。

Utricularia is the only genus in Lentibulariaceae of Taiwan. The morphology of Utricularia is highly diverse due to the habitats variation, which results in the difficulty to identify the species of this genus. This study emphasizes the morphology of Utricularia, and combines with the information of field observation and the cultivation, to ensure the influence of environmental change on external morphology, especially the characters of stolons, rhizoids, leaves, flowers, fruits, pollens, seeds, and traps. Further, the taxonomic value of trap glands between species is discussed.
There are seven species recognized in Lentibulariaceae of Taiwan; namely, U. aurea Lour., U. australis R. Br., U. bifida L., U. caerulea L., U. gibba L., U. striatula Sm., and U. uliginosa Vahl. In addition, U. minor L. and U. inflata Walter are treated as doubtful species.

摘要 I
ABSTRACT II
目次 III
表目次 IV
圖目次 V
一、前言 1
二、研究材料及方法 5
三、結果 7
　　1. 習性 7
　　2. 形態特徵 7
　　　根 　　　7
　　　假根　　　7
　　　莖 　　　8
　　　葉 　　　8
　　　捕蟲囊 9
　　　腺毛 11
　　　退化枝 13
　　　浮托 13
　　　冬芽 13
　　　花序 14
　　　花部 14
　　　花粉 15
　　　授粉 16
　　　果實 16
　　　種子 17
　　3. 無性繁殖 17
　　4. 地理分佈 17
　　5. 物候 18
四、討論 19
五、分類處理 23
　　參考文獻 50
　　附圖 　　　　55

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Websites cited
URL 1: Swedish Museum of Natural History - Linnean Herbarium (S-LINN)
[http://linnaeus.nrm.se/botany/fbo/welcome.html.en]
URL 2: The Natural History Museum - The Department of Botany (BM)
[http://www.nhm.ac.uk/botany/index.html]
URL 3: The Nationaal Herbarium Nederland - Utrecht University branch (U)
[http://www.nationaalherbarium.nl/]