Cistanthe pygmaea

(Parish ex Rydberg) Hershkovitz

Phytologi a 68: 268. 1990.

Endemic
Basionym: Calyptridium pygmaeum Parish ex Rydberg in N. L. Britton et al., N. Amer. Fl. 21: 320. 1932
Treatment appears in FNA Volume 4. Treatment on page 463. Mentioned on page 461.

Plants annual, taprooted or roots fibrous. Stems 2 or more from each rosette, spreading to erect, leafy, 0.5–8 cm. Leaves basal and cauline; basal in single, prostrate rosette; blade spatulate, 0.5–1.5 cm. Inflorescences paniculate or racemose, often secund, ± dense. Flowers pedicellate; sepals ovate, 2–4 mm, fleshy, becoming membranaceous; petals persistent in fruit, 4, white, 3 mm; stamens 1 (–3), anther yellow; style absent; stigmas 2; pedicel 1–3 mm. Capsules ovoid, 3–5 mm; valves 2. Seeds 5–9, black, orbicular, 0.3–0.7 mm, shiny. 2n = 44.


Phenology: Flowering Jun–Jul.
Habitat: Dry, less often moist, sandy or gravelly soils
Elevation: 1900-3500 m

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Cistanthe pygmaea"
Walter A. Kelley +, John M. Miller +  and John G. Packer +
(Parish ex Rydberg) Hershkovitz +
Calyptridium pygmaeum +
occasionally dentate;crisped +
spatulate +
0.5 cm5 mm <br />0.005 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
subtending +
unequal +
0.3 cm3 mm <br />0.003 m <br /> (?) +  and 0.5 cm5 mm <br />0.005 m <br /> (?) +
1900-3500 m +
Dry, less often moist, sandy or gravelly soils +
racemose +  and paniculate +
not articulate +
subrosulate +, rosulate +, alternate +, subopposite +  and opposite +
cauline +  and basal +
not reflexed +
plurilocular +
0.1 cm1 mm <br />0.001 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
persistent +
distinct +
3 cm30 mm <br />0.03 m <br /> (?) +
Flowering Jun–Jul. +
Phytologi a +
strophiolate +
5 +  and 9 +
sculptured +  and smooth +
orbicular +
0.03 cm0.3 mm <br />3.0e-4 m <br /> (?) +  and 0.07 cm0.7 mm <br />7.0e-4 m <br /> (?) +
persistent +
distinct +
unequal +
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
membranaceous;fleshy +
spreading +  and erect +
0.5 cm5 mm <br />0.005 m <br /> (8 cm80 mm <br />0.08 m <br />) +
Calyptridium +, Lewisiopsis +  and Spraguea +
Cistanthe pygmaea +
Cistanthe +
species +
not deciduous +