Wolffiella gladiata

(Hegelmaier) Hegelmaier

Botanische Jahrbucher fur Systematik, Pflanzengeschichte und Pflanzengeographie 21: 304. 1895.

WeedyIllustrated
Basionym: Wolffia gladiata Hegelmaier Lemnac., 133. 1868
Synonyms: Wolffia gladiata var. floridana Donnell Smith Wolffiella floridana
Treatment appears in FNA Volume 22. Treatment on page 151.

Fronds 1 or 2–20 or more, coherent in starlike groups, narrowly sabre-shaped, 3–9 mm, (4–)6–15(–20) times as long as wide, pointed at tip; tract of elongated cells running along edge of lower wall of pouch; area of air spaces much longer than wide, spreading throughout most of frond; angle of pouch 25°–50°; flowering fronds much wider at base than vegetative ones. Fruits 0.3–0.4 mm. 2n = 40, 42.


Phenology: Flowering (very rare) spring and fall.
Habitat: Mesotrophic, quiet waters in warm-temperate regions with relatively mild winters
Elevation: 0–400 m

Distribution

V22 364-distribution-map.jpg

Ala., Ark., Del., D.C., Fla., Ga., Ill., Ind., Ky., La., Md., Mass., Miss., Mo., N.J., N.C., Ohio, Okla., Pa., S.C., Tenn., Tex., Va., Wash., Mexico (Federal District).

Discussion

The type collection of Wolffiella gladiata, from Mexico City, is taxonomically identical with plants from Florida called W. gladiata var. floridana by J. D. Smith. Some authors included narrow specimens of W. oblonga in W. gladiata, causing confusion.

I know of no specimens of Wolffiella gladiata from Rhode Island.

Selected References

None.

Lower Taxa

None.
... more about "Wolffiella gladiata"
Elias Landolt +
(Hegelmaier) Hegelmaier +
Wolffia gladiata +
Ala. +, Ark. +, Del. +, D.C. +, Fla. +, Ga. +, Ill. +, Ind. +, Ky. +, La. +, Md. +, Mass. +, Miss. +, Mo. +, N.J. +, N.C. +, Ohio +, Okla. +, Pa. +, S.C. +, Tenn. +, Tex. +, Va. +, Wash. +  and Mexico (Federal District). +
0–400 m +
Mesotrophic, quiet waters in warm-temperate regions with relatively mild winters +
Flowering (very rare) spring and fall. +
Botanische Jahrbucher fur Systematik, Pflanzengeschichte und Pflanzengeographie +
Weedy +  and Illustrated +
Wolffia gladiata var. floridana +  and Wolffiella floridana +
Wolffiella gladiata +
Wolffiella +
species +