特徵描述
作者
YING, Shao-Shun
型態特徵
Shrubs or perennial stout herbs; rhizome subterranean; stem woody or not, short or elongate. Leaves usually aggregated at base of stem or occasionally crowded at apex of branches; blade fleshy to coriaceous, often spine-tipped or with spiny margins. Flowers bisexual or unisexual, actinomorphic to zygomorphic, in racemes, spikes or panicles, sometimes in a large thyrse; perianth free or more or less highly connate; tube short to rather long; segments 6, equal to subequal; stamens 6, arising from perianth tube or from base of perianth segments, filaments free, anthers medifixed, linear, 2-celled; cells longitudinally dehiscent; ovary superior to inferior, 3-locular, placentation axile, or rarely 1 locular; ovules 2-numerous, 1-2-seriate superposed, rarely solitary; style and stigmas various. Fruit a loculicidally dehiscent capsule or baccate, or dry and indehiscent; seeds one to many, globose or somewhat compressed.
屬
About 18 genera, more than 500 species mainly in tropical and subtropical regions of the world; four genera, native and introduced, in Taiwan.
參考文獻
Yucca 金棒蘭屬
作者
YING, Shao-Shun
型態特徵
Shrubs or small trees, stem erect, elongate to short, sometimes stemless, simple or rarely branched upward. Leaves crowded at apex of branches and stem or in rosettes at surface of ground, numerous, linear to lanceolate, chartaceous to coriaceous. Inflorescences terminal, in racemes or panicles, erect. Flowers numerous, rather large, showing, white, creamy or violet, cup or saucer-shaped, often nodding; perianth segments 6, ovate to oblong, somewhat fleshy; stamens 6, inserted on torus, much shorter than perianth, filaments curved outward at apex, anthers sagittate; ovary superior, sessile or short stipitate, 3-celled; ovules numerous in each cell; style short, with a well-developed central channel. Fruit a capsule or berry; seeds numerous, flat, black.
