Micropsis dasycarpa

(Grisebach) Beauverd

Bull. Soc. Bot. Genève, sér. 2, 5: 224. 1913.

Common names: Bighead straitjackets
IntroducedIllustrated
Basionym: Filago dasycarpa Grisebach Abh. Königl. Ges. Wiss. Göttingen 24: 185. 1879
Treatment appears in FNA Volume 19. Treatment on page 465. Mentioned on page 457.

Plants mostly 5–8 cm. Leaves 6–9 × 2–4 mm. Heads congested distally, mostly 4–5 mm. Bisexual corollas: lobes usually 4.


Phenology: Flowering and fruiting Mar–May.
Habitat: Drying mud at edge of pool
Elevation: ± 20 m

Distribution

V19-775-distribution-map.gif

Introduced; Tex., se South America

Discussion

Micropsis dasycarpa is known in the flora area from one gathering (Victoria County, Gulf Coast prairie with Mimosa strigillosa Torrey & A. Gray, in 1987). For this treatment, I have assumed the Texas population to be a recent introduction; R. Barneby provided evidence that M. dasycarpa could be an overlooked amphitropical native (J. D. Morefield 2004; see also discussion under 101. Psilocarphus).

Selected References

None.

Lower Taxa

None.
... more about "Micropsis dasycarpa"
truncate-penicillate;truncate +
scarious +
mostly ovate +  and lanceovate or linear +
racemiform +, paniculiform +  and corymbiform +
indeterminate +  and determinate +
James D. Morefield +
(Grisebach) Beauverd +
decurrent +
Filago dasycarpa +
compound +  and simple +
oblanceolate;spatulate +
5-ribbed +, 3-ribbed +  and 2-ribbed +
muriculate +, papillate +  and smooth +
broadly lanceoloid;oblanceoloid +
Bighead straitjackets +
actinomorphic +
red-tipped +, purplish +, yellow +  and whitish +
terete +, not gibbous +, ellipsoid +  and obovoid +
Tex. +  and se South America +
± 20 m +
staminate +  and pistillate +
winged +  and beaked +
dispersed +
Drying mud at edge of pool +
singly +  and aggregated +
indeterminate +
homogamous +  and heterogamous +
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
each +  and sessile +
inconspicuous +
sessile +  and petiolate +
0.6 cm6 mm <br />0.006 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
rarely lanceovate +  and lanceolate +
2-carpellate +
yellowish;brownish +
persistent +
erect +  and incurved +
persistent +
Flowering and fruiting Mar–May. +
Bull. Soc. Bot. Genève, sér. +
paleate +  and epaleate +
flat;pulvinate +
exalbuminous +
Introduced +  and Illustrated +
ascending +  and erect +
2 +  and 7 +
appendaged +  and truncate +
papillate +
Compositae +
Micropsis dasycarpa +
Micropsis +
species +
1 cm10 mm <br />0.01 m <br /> (10 cm100 mm <br />0.1 m <br />) +