本論文針對臺灣產沿階草族 (百合科) 植物進行詳細之分類研究，結果將
麥門冬屬 (Liriope) 處理為 3 種，確認台灣並無小麥門冬 (Liriope
minor (Maxim.) Makino)；沿階草屬 (Ophiopogon) 處理為 2種， 將台灣
沿階草 (O. formosanum Ohwi) 和野沿階草 (O. scaber Ohwi) 併入沿階
草 (O. japonicus (L. f.) Ker-Gawl.)，並確認原只記載於蘭嶼之闊葉沿
階草 (O. jaburan Lodd.) 為廣泛分布於低海拔地區之分類群。另外將球
子草屬(Peliosanthes) 處理為 2 種，此兩種在葉形、花部形態、花粉以
及核型均有顯著差異。除傳統分類之形態特徵外，本研究另觀察葉表皮與
花粉之微細構造、染色體數目、減數分裂之行為與核型分析，並首次報導
細葉麥門冬 (Liriope angustissima Ohwi) 之染色體數目。研究結果發
現，葉表皮之微細構造具有屬間差異，在麥門冬屬和沿階草屬則具有種間
差異，花粉大小及外壁形態具有屬間及種間差異，均可支持形態分類之結
果。細胞學之研究結果顯示台灣地區本族植物之染色體基數皆為 x= 18，
且大部份為二倍體 (2n = 36)，但在麥門冬(Liriope spicata Lour.) 及
沿階草 (Ophiopogon japonicus (L. f.) Ker-Gawl.)發現有種內多倍體的
現象，前者有二倍體及六倍體，而後者有二倍體和四倍體。此外，並發現
麥門冬 (Liriope spicata Lour.) 不同細胞型植物之生育地有生態或地理
分佈之差異。核型分析結果則顯示有屬間及種間差異，麥門冬屬及沿階草
屬之核型較為相似，球子草屬則差異較大，且不對稱度大於其餘二屬，顯
示前二屬之親緣關係較近，而球子草屬則較為疏遠。

The tribe Ophiopogoneae Engler (Liliaceae) consists of three
genera, i. e. Liriope, Ophiopogon and Peliosanthes, in Taiwan.
Ten species were treated in the first edition of Flora of
Taiwan. After intensive taxonomical study, the genus Liriope was
treated as three species; it was confirmed that there was no L.
minor (Maxim.) Makino in Taiwan. The genus Ophiopogon was
treated as two species. O. formosanum Ohwi and O. scaber Ohwi
were treated to be conspecific with O. japonicus (L. f.)
Ker-Gawl. O. jaburan Lodd., which was previously considered
confined to Orchid Island, was found distributed widely along
low altitudinal areas in Taiwan proper. The genus Peliosanthes
was treated as two species. The present treatment of
Peliosanthes was supported by the data obtained from leaf shape,
tepal morphology, palynology and karyotype. Besides
morphological comparisons, ultrastructure of leaf epidermis and
pollen exines, meiotic behaviors, chromosome number and
karyotype were studied. The results suggested that there were
intergeneric differences in leaf epidermal ultrastructure and
interspecific differences among Liriope and Ophiopogon. There
were differences in pollen sizes and exine structures among
three genera and all species of this tribe. The results of
cytological study indicated that basic chromosome number of the
tribe in Taiwan was x = 18 and most of the members were diploids
(2n = 36). The chromosome number of Liriope angustissima Ohwi
was firstly reported. The intraspecific polyploidy was observed
in Liriope spicata Lour. (2n = 2x = 36 and 2n = 6x = 108) and
Ophiopogon japonicus (L. f.) Ker-Gawl. (2n = 2x = 36 and 2n = 4x
= 72). Moreover, there were ecological or geographical
distribution differences between different cytotypes of Liriope
spicata Lour. There were intergeneric and interspecific
differences in karyotype. These two genera Liriope and Opiopogon
were similar in karyotype. The karyotype of Peliosanthes was
more asymmetrical than those of the other two genera. The
karyotype analyses above further proved that the relationship
was closer between Liriope and Ophiopogon than Peliosanthes and
the other two genera.
The tribe Ophiopogoneae Engler (Liliaceae) consists of three