Eremothera nevadensis

(Kellogg) W. L. Wagner & Hoch

Syst. Bot. Monogr. 83: 210. 2007.

Basionym: Oenothera nevadensis Kellogg Proc. Calif. Acad. Sci. 2: 224, fig. 70. 1863
Synonyms: Camissonia nevadensis (Kellogg) P. H. Raven O. gauriflora var. caput-medusae H. Léveillé O. gauriflora var. vermiculatam. E. Jones Sphaerostigma nevadense (Kellogg) A. Heller S. tortuosum A. Nelson
Treatment appears in FNA Volume 10.
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Herbs glabrate to strigillose in distal and younger parts and capsules. Stems branched from base, primary-stem short, lateral stems decumbent, usually with leaves mostly in a tuft toward apex, 1–5 (–18) cm, flowering proximally and distally. Leaves mostly cauline, clustered toward ends of branches, 1–4.5 × 0.2–0.8 cm; petiole 1–3 cm; blade oblanceolate or narrowly oblanceolate, margins entire. Inflorescences erect. Flowers opening at sunset; floral-tube 2.2–3.5 mm, glabrous inside; sepals 3.2–4 mm; petals white, fading pinkish, 3–5 mm; episepalous filaments 4.5–4.8 mm, epipetalous filaments 3–4 mm, anthers 0.4–1.5 mm; style 6–7 mm, glabrous, stigma 0.5–0.8 mm diam., exserted beyond anthers at anthesis. Capsules cylindrical and thickened proximally, spreading and highly contorted, 4-angled, 8–14 × 1–2 mm, regularly but tardily dehiscent. Seeds monomorphic, gray, 1.2–1.5 × 0.3–0.4 mm, finely reticulate. 2n = 14.


Phenology: Flowering Apr–May(–early Jun).
Habitat: Local and colonial on clay, sandy, or gravelly soils, often vernally wet sites, somewhat tolerant of alkali soils.
Elevation: 1200–1700 m.

Discussion

Eremothera nevadensis is known only from west-central Nevada in western Churchill, Douglas, northern Lyon, Ormsby, Pershing, Storey, and southern Washoe counties. P. H. Raven (1969) presumed Eremothera nevadensis to be self-compatible.

Selected References

None.

Lower Taxa

None.
... more about "Eremothera nevadensis"
0.04 cm0.4 mm <br />4.0e-4 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
Warren L. Wagner +
(Kellogg) W. L. Wagner & Hoch +
papillose +
Oenothera nevadensis +
indehiscent +  and loculicidal +
entire +, sinuate-toothed +, serrulate +  and denticulate +
oblanceolate +
0.8 cm8 mm <br />0.008 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
4-angled +  and cylindrical +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
1200–1700 m. +
reddish green +  and white +
exfoliating +
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
0.45 cm4.5 mm <br />0.0045 m <br /> (0.48 cm4.8 mm <br />0.0048 m <br />) +
basifixed +  and versatile +
0.22 cm2.2 mm <br />0.0022 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
actinomorphic +
straight +
loculicidal +
4-angled +, terete +  and cylindrical +
Local and colonial on clay, sandy, or gravelly soils, often vernally wet sites, somewhat tolerant of alkali soils. +
glabrate +  and strigillose +
5 cm50 mm <br />0.05 m <br /> (18 cm180 mm <br />0.18 m <br />) +
1 cm10 mm <br />0.01 m <br /> (5 cm50 mm <br />0.05 m <br />) +
deciduous +
1 cm10 mm <br />0.01 m <br /> (4.5 cm45 mm <br />0.045 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
numerous +  and 1 +
fading pinkish +  and white +
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
1 cm10 mm <br />0.01 m <br /> (3 cm30 mm <br />0.03 m <br />) +
Flowering Apr–May(–early Jun). +
Syst. Bot. Monogr. +
basal +  and cauline +
clavate +  and globose +
monomorphic +
0.12 cm1.2 mm <br />0.0012 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
7 +  and numerous +
sculptured +  and smooth +
truncate-ellipsoid +, narrowly obovoid +  and oblanceoloid +
0.03 cm0.3 mm <br />3.0e-4 m <br /> (0.04 cm0.4 mm <br />4.0e-4 m <br />) +
in pairs +  and singly +
purple +, pink +, red +  and green +
deciduous +
0.32 cm3.2 mm <br />0.0032 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
parenchymatous +
parietal +, axile +  and placentation +
unequal +
aquatic +, amphibious +  and terrestrial +
episepalous +
2 times as many or as many as sepals +
prostrate +  and decumbent +
ascending +  and erect +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.08 cm0.8 mm <br />8.0e-4 m <br />) +
subglobose +
subsessile +  and petiolate +
intrapetiolar +
0.6 cm6 mm <br />0.006 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
aquatic +, amphibious +  and terrestrial +
non-papillate +
Camissonia nevadensis +, O. gauriflora var. caput-medusae +, O. gauriflora var. vermiculatam. +, Sphaerostigma nevadense +  and S. tortuosum +
Eremothera nevadensis +
Eremothera +
species +
3(-5)-aperturate +
smooth +  and erose +
papillate +