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Philydraceae Link

田葱科

Description from Flora of China

Herbs, perennial, erect. Rhizome short. Leaves radical or crowded at stem base, basal and proximal cauline ones distichous, others smaller and spirally arranged; leaf sheaths equitant; leaf blade linear or ensiform, veins parallel, stomata paracytic. Inflorescence a spike, often branched; bracts spathelike. Flowers bisexual, sessile, zygomorphic. Perianth yellow or whitish; segments 4, in 2 whorls, petaloid, outer 2 larger than inner 2. Stamen 1, inserted at base of lower perianth segment; filament flattened, glabrous; anther basifixed, 2-loculed, dehiscing by longitudinal slits; pollen grains 2-nucleate. Ovary superior, 3-loculed and placentation axile or 1-loculed and placentation parietal; ovules numerous per locule, anatropous. Style simple; stigma capitate or obscurely 3-lobed. Fruit a 3-valved capsule, longitudinally dehiscent. Seeds numerous; testa helicoidally striate; endosperm developed; embryo straight.

Wu Kuo-fang. 1997. Philydraceae. In: Wu Kuo-fang, ed., Fl. Reipubl. Popularis Sin. 13(3): 142--144.

Four genera and five species: mainly in Australia, some species extending to W Pacific Islands and mainland SE Asia; one species in China.

(Authors: Wu Guofang (吴国芳 Wu Kuo-fang); Kai Larsen)

Lower Taxon


 

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