Portulaca umbraticola subsp. lanceolata

J. F. Matthews & Ketron

Castanea 56: 304. 1991.

Endemic
Basionym: Portulaca lanceolata Engelmann Boston J. Nat. Hist. 6: 1 54. 1850,
Treatment appears in FNA Volume 4. Treatment on page 501.
Revision as of 08:12, 30 July 2020 by imported>Volume Importer
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Flowers 8–15 mm diam.; petals yellow-tipped with red (copper). 2n = 54.


Phenology: Flowering late spring–early fall.
Habitat: Granitic and sandstone outcrops, dry, sandy soil, cultivated fields
Elevation: 0-200 m

Distribution

V4 1022-distribution-map.gif

Ariz., Ark., La., Miss., Mo., N.Mex., Okla., Tex.

Discussion

Selected References

None.

Lower Taxa

None.
copper +  and red +
5mm;10mm +
cuspidate +, acute +, obovate +, spatulate +, rounded +  and truncate +
3mm;6mm +
James F. Matthews +
J. F. Matthews & Ketron +
Portulaca lanceolata +
occasionally dentate;crisped +
flattened +, subterete +  and terete +
5 cm50 mm <br />0.05 m <br /> (20 cm200 mm <br />0.2 m <br />) +
circumscissile +
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
turbinate +  and obovoid +
expanded +
membranaceous +
Ariz. +, Ark. +, La. +, Miss. +, Mo. +, N.Mex. +, Okla. +  and Tex. +
0-200 m +
open +, subsessile +  and sessile +
0.8 cm8 mm <br />0.008 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
Granitic and sandstone outcrops, dry, sandy soil, cultivated fields +
open +  and congested +
paniculate +  and racemose +
1 cm10 mm <br />0.01 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
flattened +, spatulate +  and obovate +
exstipulate +  and secund +
subopposite +  and alternate +
involucrelike +
plurilocular +
half-inferior;inferior +
yellow-tipped +
ephemeral +
distinct +
Flowering late spring–early fall. +
variously sculptured granular;stellate-tuberculate +
sculptured +  and smooth +
flattened +, elongate +  and round +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (?) +  and 0.1 cm1 mm <br />0.001 m <br /> (?) +
herbaceous;scarious +
7 +  and 30 +
suffrutescent +
prostrate +  and suberect +
5 +  and 18 +
Portulaca umbraticola subsp. lanceolata +
Portulaca umbraticola +
subspecies +
fleshy +  and succulent +
membranaceous +
0.5mm;1.5mm +
9 +, 8 +, 5 +  and 4 +