Syringodium

Kutzing in R. F. Hohenacker

in R. F. Hohenacker,Algae Marinae Exsiccatae 9: 426. 1860.

Common names: Manatee-grass
Treatment appears in FNA Volume 22.
 TaxonIllustrator 
FNA22 P16 Zannichellia Halodule Syringodium pg 85.jpegZannichellia palustris
Syringodium filiforme
Halodule wrightii

Stems erect, subtended by ovate scales. Leaves 2–3; blade terete or semiterete, apex acute to obtuse, lacunae 2; veins 1–2 [–7–10], midrib inconspicuous, not obviously widened distally, lateral-veins inconspicuous, not ending in tooth. Inflorescences cymose. Flowers axillary to bract, inflated sheath present. Staminate flowers: anthers attached at same height on axis. Pistillate flowers sessile, styles divided into 2 long stigmas. Fruits drupaceous, obovoid [ellipsoid], quadrangular in cross-section.

Distribution

Warm oceanic waters of both hemispheres

Discussion

Species 2 (1 in the flora).

"elongating" is not a number.

... more about "Syringodium"
acute +  and obtuse +
Robert R. Haynes +
Kutzing in R. F. Hohenacker +
semiterete +  and terete +
Manatee-grass +
Warm oceanic waters of both hemispheres +
sessile +, pistillate +  and staminate +
quadrangular +  and obovoid +
terminal +  and axillary +
opposite +  and alternate +
submersed +
not scarious +
inconspicuous +
orthotropous +  and pendulous +
not spiraling +
not stipitate +
in R. F. Hohenacker,Algae Marinae Exsiccatae +
cox1990a +  and tomlinson1978a +
auriculate +
persisting +
inflated +
divided +
Syringodium +
Cymodoceaceae +
1 (?) +  and 2 (?) +
caulescent +  and rhizomatous +