Difference between revisions of "Micranthemum micranthemoides"
in H. G. A. Engler and K. Prantl, Nat. Pflanzenfam. 67[IV,3b]: 77. 1891.
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|accepted_name=Micranthemum micranthemoides | |accepted_name=Micranthemum micranthemoides | ||
| − | |accepted_authority=(Nuttall) Wettstein | + | |accepted_authority=(Nuttall) Wettstein |
|publications={{Treatment/Publication | |publications={{Treatment/Publication | ||
| − | |title=Nat. Pflanzenfam. | + | |title=in H. G. A. Engler and K. Prantl, Nat. Pflanzenfam. |
|place=67[IV,3b]: 77. 1891 | |place=67[IV,3b]: 77. 1891 | ||
|year=1891 | |year=1891 | ||
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-->{{#Taxon: | -->{{#Taxon: | ||
name=Micranthemum micranthemoides | name=Micranthemum micranthemoides | ||
| − | |authority=(Nuttall) Wettstein | + | |authority=(Nuttall) Wettstein |
|rank=species | |rank=species | ||
|parent rank=genus | |parent rank=genus | ||
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|distribution=Del.;D.C.;Md.;N.J.;N.Y.;Pa.;Va. | |distribution=Del.;D.C.;Md.;N.J.;N.Y.;Pa.;Va. | ||
|reference=None | |reference=None | ||
| − | |publication title=Nat. Pflanzenfam. | + | |publication title=in H. G. A. Engler and K. Prantl, Nat. Pflanzenfam. |
|publication year=1891 | |publication year=1891 | ||
|special status=Endemic | |special status=Endemic | ||
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V17/V17_79.xml |
|genus=Micranthemum | |genus=Micranthemum | ||
|species=Micranthemum micranthemoides | |species=Micranthemum micranthemoides | ||
Latest revision as of 19:37, 5 November 2020
Leaves opposite or whorled; petiole 0–0.5 mm; blade elliptic to oblanceolate, 3–6 × 1.2–3 mm. Pedicels 0.6–2 mm. Flowers cleistogamous; calyx irregularly symmetric, tube deeply lobed abaxially, 1.2–1.5 mm, tube 0.7–1 mm, lobes 0.5–0.6 mm; corolla strongly bilaterally symmetric, unilabiate or nearly so, 1.8–2 mm, longer than calyx, tube 0.3–0.5 mm, abaxial lobes 3, forming a prominent lip, 1.4–1.5 mm, lateral 0, adaxial (0–)0.4–0.6 mm. Capsules 1.1–1.3 × 0.9–1 mm. Seeds oblong to narrowly obconic, 0.3–0.4 × 0.2–0.3 mm.
Phenology: Flowering summer–fall.
Habitat: Fresh water tidal areas in sandy, gravelly substrates.
Elevation: 0–10 m.
Distribution
Del., D.C., Md., N.J., N.Y., Pa., Va.
Discussion
The range given for Micranthemum micranthemoides is historic; it is presumed extinct in the wild but may still be available in the aquarium plant trade. The most recently collected specimen examined by the author was gathered in 1941 by M. L. Fernald (Fernald & Long 13754, GH) along the Chickahominy River near Cypress Bank Landing, Virginia.
Micranthemum nuttallii A. Gray is an older, but illegitimate name that pertains here; it was an avowed substitute for Hemianthus micranthemoides.
Selected References
None.