familyOnagraceae
subfamilyOnagraceae subfam. Onagroideae
tribeOnagraceae tribe Onagreae
genusOenothera
sectionOenothera sect. Gaura
subsectionOenothera subsect. Gaura
speciesOenothera nealleyi

Oenothera nealleyi

(J. M. Coulter) Krakos & W. L. Wagner

PhytoKeys 28: 64. 2013.

Warren L. Wagner
Basionym: Gaura nealleyi J. M. Coulter Contr. U.S. Natl. Herb. 1: 38. 1890
Synonyms: G. suffulta subsp. nealleyi (J. M. Coulter) P. H. Raven & D. P. Gregory G. suffulta var. terrellensis Munz Oenothera suffulta subsp. nealleyi (J. M. Coulter) W. L. Wagner & Hoch
Treatment appears in FNA Volume 10.
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Herbs annual, sparsely villous proximally, leaves glabrate to sparsely villous along veins and on margins, usually glandular puberulent in distal parts; from stout taproot. Stems usually well-branched, 20–70 (–100) cm. Leaves in a basal rosette and cauline, basal 3.5–9 × 0.5–1.5 cm, blade lyrate; cauline 1.5–7 × 0.1–0.6 cm, blade narrowly lanceolate to linear, margins sinuate-dentate, undulate. Flowers 4-merous, zygomorphic, opening at sunset; floral-tube 10–20 mm; sepals 11–21 mm; petals white, fading pink to red, elliptic to elliptic-obovate, 10–15 mm; filaments 8–13 mm, anthers 2–6 mm, pollen 90–100% fertile; style 22–36 mm, stigma exserted beyond anthers at anthesis. Capsules ellipsoid or ovoid, narrowly 4-winged, furrowed between angles, 4.5–8 × 2–5 mm, stipe 0.2–2.2 mm; sessile. Seeds 3 or 4 (or 5), yellowish to light-brown, 2–3 (–4) × 1 mm. 2n = 14.


Phenology: Flowering Apr–Oct.
Habitat: Washes, sandy places, grass­lands, extending to pinyon-juniper woodlands.
Elevation: 1200–2200 m.

Distribution

N.Mex., Tex., Mexico (Coahuila)

Discussion

Oenothera nealleyi is restricted to an area from trans-Pecos Texas and northern Coahuila, Mexico, north to Bernalillo and Torrance counties, New Mexico. P. H. Raven and D. P. Gregory (1972[1973]) considered O. nealleyi to represent an unevenly intergrading entity with O. suffulta based on merging of distinguishing characteristics. The known intermediates occur in Terrell County, Texas, and were previously described as Gaura suffulta var. terrellensis Munz, but until new data on its status are available, we include this name with O. nealleyi. The molecular data (K. N. Krakos, unpubl.) suggest that O. nealleyi is not as closely related to O. suffulta as suggested by Raven and Gregory, given the placement in the phylogeny and the differ­ence in scent profiles for these two taxa. Oenothera suffulta is a member of a strongly supported clade that also includes O. patriciae and O. triangulata, while O. nealleyi is a member of a polytomy that consists of other species of subsect. Gaura, with the O. suffulta—O. triangulata—O. patriciae clade sister to it (W. L. Wagner et al. 2013). Oenothera nealleyi has a strong sweet scent, whereas O. suffulta does not have a discernible scent (Wagner et al.). Raven and Gregory determined O. nealleyi to be self-incompatible.

Selected References

None.

Lower Taxa

None.
... more about "Oenothera nealleyi"
RDF feed
2n chromosome quantity
14 +
4-locular septum architecture
incomplete +
4-locular septum architecture or structure in adjective form
1-locular +
Androecium position
epigynous +
Anther fixation
versatile +
Anther some measurement
0.2 cm2 mm <br />0.002 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
Apex dehiscence
indehiscent +
Apex shape
rounded +, , +, acute +  and attenuate +
Author
Warren L. Wagner +
Authority
(J. M. Coulter) Krakos & W. L. Wagner +
Basal leaf arrangement
alternate +
Basal leaf position
cauline +
Basal leaf presence
absent +
Basal scale some measurement
0.03 cm0.3 mm <br />3.0e-4 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
Basal stem length
3.5 cm35 mm <br />0.035 m <br /> (9 cm90 mm <br />0.09 m <br />) +
Basal stem position
cauline +
Basal stem width
0.5 cm5 mm <br />0.005 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
Base coloration
pale green +  and yellow usually fading orange purple pale-yellow reddish or whitish +
Base shape
pedicel-like +
Basionyms
Gaura nealleyi +
Berry architecture or shape
nutlike +
Berry dehiscence
indehiscent +  and loculicidal +
Blade margin shape
sinuate-dentate +  and denticulate serrate lobed or entire +
Blade position
cauline +
Blade shape
narrowly lanceolate +  and linear +
Bud orientation
erect +
Bud shape
terete +
Capsule architecture
furrowed +  and 4-winged +
Capsule architecture or shape
nutlike +
Capsule architecture or structure in adjective form
4-locular +
Capsule condition or texture
dry +
Capsule course
curved +  and straight +
Capsule dehiscence
indehiscent +  and dehiscent +
Capsule length
0.45 cm4.5 mm <br />0.0045 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
Capsule orientation
erect +
Capsule shape
ovoid +  and ellipsoid +
Capsule size
constricted +
Capsule texture
woody +
Capsule width
0.2 cm2 mm <br />0.002 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
Carpel quantity
Many (?) +
Cel reproduction
vegetative +
Distribution
N.Mex. +, Tex. +  and Mexico (Coahuila) +
Elevation
1200–2200 m. +
Embryo-sac coating
oily +
Embryo-sac course
straight +
Embryo-sac presence
absent +
Embryo coating
oily +
Embryo course
straight +
Embryo presence
absent +
Endosperm coating
oily +
Endosperm course
straight +
Endosperm presence
absent +
Epidermis coloration
whitish +  and green +
Epidermis relief
exfoliating +
Filament architecture
dithecal +
Filament fixation
basifixed +  and versatile +
Filament fusion
distinct +
Filament some measurement
0.8 cm8 mm <br />0.008 m <br /> (1.3 cm13 mm <br />0.013 m <br />) +
Floral-tube atypical some measurement
1.4 cm14 mm <br />0.014 m <br /> (2 cm20 mm <br />0.02 m <br />) +
Floral-tube duration
deciduous +
Floral-tube presence
absent +
Floral-tube pubescence
lanate +
Floral-tube quantity
, +
Floral-tube some measurement
1 cm10 mm <br />0.01 m <br /> (2 cm20 mm <br />0.02 m <br />) +
Flower architecture
zygomorphic +  and 4-merous +
Flower architecture or arrangement or growth form
solitary +
Flower orientation
nodding +  and erect +
Flower part duration
deciduous +
Flower part life cycle
anthesis +
Flower reproduction
bisexual +
Fruit architecture
winged +
Fruit course
curved +  and straight +
Fruit dehiscence
indehiscent +  and dehiscent +
Fruit shape
4-angled +, terete +, tapering +, cylindrical +, ellipsoid +, clavate +, ovoid ellipsoid +  and cylindrical rhombic-obovoid or globose +
Habitat
Washes, sandy places, grasslands, extending to pinyon-juniper woodlands. +
Hair height or length or size
short +
Hair position relational
interlocking +
Herb architecture
caulescent +
Herb duration
annual +
Herb growth form
suffrutescent +
Herb pubescence
villous +
Herb texture
producing rhizomes +  and woody +
Illustration
Present +
Indusium architecture
peltate +
Indusium prominence
conspicuous +
Inflorescence orientation
erect +
Inflorescence position
axillary +
Lateral root orientation
spreading +
Leaf-axil orientation
nodding +  and erect +
Leaf architecture
simple +
Leaf architecture or function or pubescence
glandular +
Leaf arrangement
alternate +
Leaf atypical some measurement
8 cm80 mm <br />0.08 m <br /> (13 cm130 mm <br />0.13 m <br />) +
Leaf condition
later +
Leaf duration
deciduous +
Leaf position
cauline +
Leaf presence
absent +
Leaf pubescence
puberulent +, glabrate +  and sparsely villous +
Leaf some measurement
2 cm20 mm <br />0.02 m <br /> (8 cm80 mm <br />0.08 m <br />) +
Lobe arrangement or course or shape
linear +
Lobe quantity
4 (?) +
Locule arrangement or growth form
clustered +
Locule quantity
many +
Margin architecture or shape
sinuate-dentate +
Margin shape
undulate +
Mouth condition
closing +
Mouth presence
absent +
Mouth size
reduced +
Nectary presence
absent +
Number of lower taxa
0 +
Ovary architecture
pedicellate +  and sessile +
Ovary architecture or structure in adjective form
1-locular +
Ovary position
inferior +
Ovule architecture
bitegmic +
Ovule arrangement or growth form
clustered +
Ovule orientation
anatropous +
Ovule quantity
1 +  and 8 +
Perianth position
epigynous +
Petal arrangement
imbricate +
Petal arrangement or shape
convolute +
Petal coloration
fading pink +  and red +
Petal presence
absent +
Petal quantity
4 +
Petal shape
elliptic +  and elliptic-obovate +
Petal size
unequal +
Petal some measurement
1 cm10 mm <br />0.01 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
Phenology
Flowering Apr–Oct. +
Pollen-grain dehiscence or orientation
longitudinal +
Pollen arrangement
singly +
Pollen reproduction
fertile +
Polyad arrangement
singly +
Proximal part reproduction
sterile +
Publication title
PhytoKeys +
Publication year
2013 +
Raphide quantity
abundant +
Reference
None +
Rosette position
basal +  and cauline +
Row atypical quantity
2 (4) +
Row quantity
2 +  and 1 +
Secretion condition
wet +
Secretion condition or texture
dry +
Secretion relief
papillate +
Secretion shape
clavate +  and globose +
Seed atypical length
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
Seed atypical quantity
1 (160) +
Seed coloration
list +  and count +
Seed length
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
Seed quantity
4 +  and 3 +
Seed relief
sculptured +  and smooth +
Seed size
reduced +
Seed width
1 cm10 mm <br />0.01 m <br /> (?) +
Sepal architecture or dehiscence
splitting +
Sepal arrangement
separating +
Sepal arrangement or dehiscence
valvate +
Sepal coloration
purple +, pink +, red +  and green +
Sepal duration
deciduous +
Sepal fusion
coherent +
Sepal orientation
reflexed +
Sepal quantity
4 +
Sepal some measurement
1.1 cm11 mm <br />0.011 m <br /> (2.1 cm21 mm <br />0.021 m <br />) +
Septum architecture
disarticulating +  and sessile +
Septum arrangement
parietal +, axile +  and placentation +
Septum fragility
fragile +
Septum presence
absent +
Septum prominence
not evident +
Septum width
thin +
Series length or size
longer +
Series quantity
2 +
Series size
unequal +
Series variability
equal +
Set length or size
longer +
Set quantity
2 +
Set variability
equal +
Shoot orientation
arising +
Shrub architecture
unarmed +
Shrub growth form
not clonal +
Shrub habitat
aquatic +, amphibious +  and terrestrial +
Slit dehiscence or orientation
longitudinal +
Spike architecture
leafy +
Stamen quantity
8 +
Stamen size
in 2 unequal series +  and subequal +
Stamen size or quantity
2 times as many or as many as sepals +
Stem architecture
well-branched +
Stem atypical some measurement
70 cm700 mm <br />0.7 m <br /> (100 cm1,000 mm <br />1 m <br />) +
Stem growth form or orientation
decumbent +
Stem orientation
ascending +  and erect +
Stem quantity
several +  and single +
Stem some measurement
20 cm200 mm <br />0.2 m <br /> (70 cm700 mm <br />0.7 m <br />) +
Stigma architecture
peltate +
Stigma development
developing +
Stigma quantity
1 +
Stigma shape
divided +
Stipe architecture
sessile +
Stipe some measurement
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.22 cm2.2 mm <br />0.0022 m <br />) +
Stipule architecture
petiolate +  and sessile +
Stipule duration
caducous +
Stipule position
intrapetiolar +
Stipule presence
absent +
Stipule size
small +
Style pubescence
pubescent +  and glabrous +
Style quantity
1 +
Style some measurement
2.2 cm22 mm <br />0.022 m <br /> (3.6 cm36 mm <br />0.036 m <br />) +
Subshrub architecture
unarmed +
Subshrub growth form
not clonal +
Subshrub habitat
aquatic +, amphibious +  and terrestrial +
Surface architecture
smooth +, reticulate +  and furrowed +
Surface architecture or pubescence or relief
smooth +
Surface architecture or shape
entire +
Surface atypical quantity
4 (8) +
Surface condition
wet +
Surface duration
persisting +
Surface life cycle
anthesis +
Surface prominence
obscured +
Surface quantity
1 (4) +
Surface relief
rugose +, papillose +  and non-papillate +
Surface shape
oblanceoloid +  and ovoid +
Synonyms
G. suffulta subsp. nealleyi +, G. suffulta var. terrellensis +  and Oenothera suffulta subsp. nealleyi +
Taxon family
Onagraceae +
Taxon name
Oenothera nealleyi +
Taxon parent
Oenothera subsect. Gaura +
Taxon rank
species +
Tetrad arrangement
singly +
Tetrad dehiscence
3(-5)-aperturate +
Tip fusion
free +
Viscin thread dehiscence or orientation
longitudinal +
Viscin thread fusion
united +
Volume
Volume 10 +
Wall texture
woody +  and hard +
Wing architecture
smooth +  and erose +
Wing condition or texture
dry +
Wing relief
papillate +
Wing width
thick +
Within position or shape
distal +
Within quantity
1/2 +