Flora of North America species comparison

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Wolffiella gladiata

Florida mudmidget, mud-midget, sword bogmat, sword-like bog-mat
Fruits

0.3–0.4 mm.
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.
2n

= 40, 42.

Wolffiella gladiata
Phenology Flowering (very rare) spring and fall.
Habitat Mesotrophic, quiet waters in warm-temperate regions with relatively mild winters
Elevation 0–400 m (0–1300 ft)
Distribution
from FNA
AL; AR; DC; DE; FL; GA; IL; IN; KY; LA; MA; MD; MO; MS; NC; NJ; OH; OK; PA; SC; TN; TX; VA; WA; Mexico (Federal District)
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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.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 22, p. 151.
Parent taxa Lemnaceae > Wolffiella
Sibling taxa
W. lingulata, W. oblonga
Synonyms Wolffia gladiata, Wolffia gladiata var. floridana, W. floridana
Name authority (Hegelmaier) Hegelmaier: Botanische Jahrbucher fur Systematik, Pflanzengeschichte und Pflanzengeographie 21: 304. (1895)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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