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FOC | Family List | FOC Vol. 23 | Hydrocharitaceae | Najas

5. Najas browniana Rendle, Trans. Linn. Soc. London, Bot. 5: 420. 1899.

高雄茨藻 gao xiong ci zao

Stems 20-30 cm tall, ca. 1 mm in diam. Leaves often in pseudowhorls of 3, linear, 1-2 cm × 0.5-1 mm; sheath shortly auriculate; auricles triangular, ca. 2 mm, minutely serrulate with several teeth on apex; leaf margin on each side minutely serrulate with 10-20 teeth. Plants monoecious; flowers solitary or 2 or 3 together. Male flowers ca. 1 mm; spathe with a short neck, with brownish spine cells at apex; anther 1-thecous. Female flowers linear-ellipsoid, ca. 1 mm; style short; stigmas 2-lobed. Fruit linear-ellipsoid, 1.5-1.7 mm. Seeds narrowly ellipsoid, with many rows of pits; areoles squarish to pentangular. Fl. and fr. Aug-Nov. 2n = 12*.

Brackish water. Guangdong, Guangxi, Taiwan [India, Indonesia, New Guinea; Australia].

According to Triest (Mém. Acad. Roy. Sci. Outre-Mer, Cl. Sci. Nat. Méd., Collect. 8vo. 22: 118. 1988), Najas browniana is found only in Australia.


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