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.

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 +