Wolffia brasiliensis

Fronds boat-shaped, 0.5–1.6 mm, 1–1.5 times as long as wide, 0.3–0.7 times as deep as wide, rounded at apex, papilla usually prominent in center of upper surface (tent-shaped); upper surface intensely green, with 50–100 stomates; pigment cells present in vegetative tissue (visible in dead fronds as brown dots). 2n = 20, 40, 42, 50, 60, 80.

Phenology: Flowering (rare) late spring–early fall.
Habitat: Mesotrophic to eutrophic, quiet waters in temperate to subtropical regions
Elevation: 0–1000 m

Ala., Ark., Calif., Conn., Del., D.C., Fla., Ga., Ill., Ind., Kans., Ky., La., Md., Mass., Mich., Miss., Mo., N.J., N.Y., N.C., Ohio, Okla., Oreg., Pa., S.C., Tenn., Tex., Va., Wash., W.Va., Wis., Mexico, West Indies, Central America, South America.

Discussion

I know of no specimens of Wolffia brasiliensis from Rhode Island.

References

None.

Lower Taxa

No lower taxa listed.

Author	Elias Landolt +
Authority	Weddell +
Distribution	Ala. +, Ark. +, Calif. +, Conn. +, Del. +, D.C. +, Fla. +, Ga. +, Ill. +, Ind. +, Kans. +, Ky. +, La. +, Md. +, Mass. +, Mich. +, Miss. +, Mo. +, N.J. +, N.Y. +, N.C. +, Ohio +, Okla. +, Oreg. +, Pa. +, S.C. +, Tenn. +, Tex. +, Va. +, Wash. +, W.Va. +, Wis. +, Mexico +, West Indies +, Central America + and South America. +
Elevation	0–1000 m +
Habitat	Mesotrophic to eutrophic, quiet waters in temperate to subtropical regions +
Illustrator	John Myers +
Phenology	Flowering (rare) late spring–early fall. +
Publication title	Annales des Sciences Naturelles, Botanique +
Publication year	1849 +
Reference	None +
Source xml	https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse grained fna xml/V22/V22 541.xml +
Synonyms	Wolffia papulifera + and Wolffia punctata +
Taxon family	Lemnaceae +
Taxon name	Wolffia brasiliensis +
Taxon parent	Wolffia +
Taxon rank	species +
Volume	Volume 22 +

Wolffia brasiliensis

Contents

Distribution

Discussion

References

Lower Taxa