Micranthemum glomeratum

(Chapman) Shinners

Sida 1: 252. 1964.

Common names: Manatee mudflower
WeedyEndemic
Basionyms: Micranthemum nuttallii var. glomeratum Chapman Fl. South. U.S. ed. 2 repr. 2, 690. 1892
Synonyms: Hemianthus glomeratus (Chapman) Pennell
Treatment appears in FNA Volume 17. Treatment on page 358.

Leaves opposite or whorled; petiole 0–0.2 mm; blade elliptic to oblanceolate, 2.5–8.5 (–15) × 0.5–3.1 mm. Pedicels 0.5–4 mm. Flowers chasmogamous; calyx irregularly symmetric, tube deeply lobed abaxially, 1.1–1.4 mm, tube 0.5–0.8 mm, lobes 0.5–0.7 mm; corolla strongly bilaterally symmetric, unilabiate or nearly so, 1.7–1.8 mm, longer than calyx, tube 0.5–0.8 mm, abaxial lobes 3, forming a prominent lip, 0.9–1 mm, lateral 0, adaxial (0–) 0.7–0.8 mm. Capsules 1.1–1.3 × 0.9–1.2 mm. Seeds ellipsoid, 0.2–0.3 × 0.05–0.1 mm.


Phenology: Flowering spring–late summer.
Habitat: Margins of lakes and streams, sandy soils.
Elevation: 0–30 m.

Discussion

Micranthemum glomeratum primarily occurs in the central part of the peninsula; it has not been found in the extreme southern counties. In the northern panhandle region, there is an outlier record from Gadsden County.

Selected References

None.

Lower Taxa

None.

... more about "Micranthemum glomeratum"
0.09 cm0.9 mm <br />9.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
0 cm0 mm <br />0 m <br /> (0.07 cm0.7 mm <br />7.0e-4 m <br />) +
0.07 cm0.7 mm <br />7.0e-4 m <br /> (0.08 cm0.8 mm <br />8.0e-4 m <br />) +
Brian R. Keener +
(Chapman) Shinners +
Micranthemum nuttallii var. glomeratum +
0.85 cm8.5 mm <br />0.0085 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.85 cm8.5 mm <br />0.0085 m <br />) +
elliptic +  and oblanceolate +
not leathery +
0.5mm;3.1mm +
campanulate +
0.11 cm1.1 mm <br />0.0011 m <br /> (0.13 cm1.3 mm <br />0.0013 m <br />) +
0.09 cm0.9 mm <br />9.0e-4 m <br /> (0.12 cm1.2 mm <br />0.0012 m <br />) +
Manatee mudflower +
nearly +  and unilabiate +
0.17 cm1.7 mm <br />0.0017 m <br /> (0.18 cm1.8 mm <br />0.0018 m <br />) +
0–30 m. +
bearing a process +  and gibbous +
poricidal +  and septicidal +
Margins of lakes and streams, sandy soils. +
whorled +  and opposite +
prominent +
oblanceolate;lanceolate +
unequal +
toothed +, undulate +  and entire +
tenuinucellate +  and unitegmic +
orthotropous +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
0 cm0 mm <br />0 m <br /> (0.02 cm0.2 mm <br />2.0e-4 m <br />) +
Flowering spring–late summer. +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.03 cm0.3 mm <br />3.0e-4 m <br />) +
ellipsoid +
0.005 cm0.05 mm <br />5.0e-5 m <br /> (0.01 cm0.1 mm <br />1.0e-4 m <br />) +
Weedy +  and Endemic +
repent +  and prostrate +
prostrate +  and weakly ascending +
weakly +  and 4-angled +
neither +, clavate +, capitate +  and 2-lobed +
Hemianthus glomeratus +
Micranthemum glomeratum +
Micranthemum +
species +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.08 cm0.8 mm <br />8.0e-4 m <br />) +
perennial +  and annual +