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Halophila johnsonii Eiseman  
Family: Hydrocharitaceae
Johnson's Sea-Grass, more...Johnson's seagrass
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Robert R. Haynes in Flora of North America (vol. 22)
Rhizomes with 2 scales at each node. Erect stems absent. Leaves apparently attached to rhizome, 5--25 ´ 1--4 mm; blade linear-lanceolate, base cuneate, margins entire, glabrous, apex round to round-acute. Inflorescences: spathe 2-leaved, enclosing pistillate flowers. Flowers unisexual, staminate and pistillate on different plants; staminate flowers unknown; pistillate flowers sessile, ca. 5 mm. Fruits ovoid. Seeds not seen.

Flowering spring--summer. Sandy substrates of marine waters; -2--0 m; Fla.
Halophila johnsonii
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This project was made possible in part by the Institute of Museum and Library Services [MG-70-19-0057-19].
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