Difference between revisions of "Wolffia columbiana"
Botanische Untersuchungen. [Landwirthschaftliche Lehranstalt. Physiologisches Laboratorium] Berlin 1: 103, figs. 2g, 3g. 1865.
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name=Wolffia columbiana | name=Wolffia columbiana | ||
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|authority=H. Karsten | |authority=H. Karsten | ||
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|publication year=1865 | |publication year=1865 | ||
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| − | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/ | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V22/V22_314.xml |
|genus=Wolffia | |genus=Wolffia | ||
|species=Wolffia columbiana | |species=Wolffia columbiana | ||
Revision as of 19:57, 16 December 2019
Fronds nearly globular, 0.5–1.4 mm (x 0.4–1.2 mm), 1–1.3 times as long as wide, 1–1.3 times as deep as wide, rounded at apex, papilla absent; upper surface transparently green, with 1–10(–30) stomates; pigment cells absent in vegetative tissue. 2n = 30 (H, U), 40 (U), 42 (D), 500 (U), 70 (70), 80 (U).
Phenology: Flowering (very rare) summer–early fall.
Habitat: Mesotrophic to eutrophic, quiet waters in temperate to subtropical regions
Elevation: 0–1100 m
Distribution
Alta., Man., Ont., Que., Sask., Ala., Ark., Calif., Colo., Conn., Del., D.C., Fla., Ga., Ill., Ind., Iowa, Kans., Ky., La., Maine, Md., Mass., Mich., Minn., Miss., Mo., Mont., Nebr., N.H., N.J., N.Y., N.C., N.Dak., Ohio, Okla., Oreg., Pa., S.C., S.Dak., Tenn., Tex., Vt., Va., W.Va., Wis., Mexico, West Indies (Cura�ao), Central America, South America.
Discussion
I know of no specimens of Wolffia columbiana from Rhode Island.