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An Unrecorded Species from Korean Flora: Vallisneria spinulosa (Hydrocharitaceae)  

Na, Hye Ryun (Division of Natural Sciences, Ajou University)
Shin, Hyunchur (Department of Biological Science, Soonchunhyang University)
Choi, Hong-Keun (Division of Natural Sciences, Ajou University)
Publication Information
Korean Journal of Plant Taxonomy / v.38, no.1, 2008 , pp. 69-77 More about this Journal
Abstract
We report Vallisneria spinulosa S. Z. Yan (Hydrocharitaceae) as an unrecorded species from the flora of Korea. This aquatic vascular plant occurs in reservoirs, streams, and ditches at Changnyeong, Changwon, and Gimhae which belong to Nakdong river basin. Vallisneria spinulosa is distinguishable from V. natans (Lour.) Hara already known to Korean flora by the presence of turion and hairs at base of stamen, adnation between pistil and staminodia, the number of stamen, and shape of fruit and seed. V. spinulosa is similar to V. desnseserrulata Makino in the viewpoint of distribution (Japan and southern China), but V. spinulosa has three to five epidermal wings on the surface of seed.
Keywords
Hydrocharitaceae; Nakdong river basin; unrecorded species; Vallisneria; V. spinulosa;
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