作者

YANG, Yuen-Po

型態特徵

Freshwater perennial herbs, rooting in mud or floating. Rhizomes present or absent. Leaves rosulate or alternate, submersed or floating or emergent, with numerous parallel veins; petiole sheathing at base. inflorescences racemes or spikes exserted from sheath of uppermost leaf. Flowers bisexual. Perianth segments 6, blue or purplish blue, marcescent. Stamens 1-6, inserted at base of perianth; filaments free, glabrous or pubescent; anthers 2-celled. Ovary superior, sessile, 1-3-celled; placenta parietal or axile; ovules numerous, anatropous; style simple; stigmas entire or 3-lobed. Fruits loculicidally dehiscent, 3-valved. Seeds small, numerous, ribbed.

屬

Six genera, about 30 species in the tropics; two genera in Taiwan

參考文獻

• YANG, Yuen-Po, Flora of Taiwan, second edition 5: 133. 2000.  (Fl. Taiwan 2nd edit.)