familyOnagraceae
subfamilyOnagraceae subfam. Onagroideae
tribeOnagraceae tribe Onagreae
genusChylismia
sectionChylismia sect. Chylismia
speciesChylismia atwoodii

Chylismia atwoodii

(Cronquist) W. L. Wagner & Hoch

Syst. Bot. Monogr. 83: 205. 2007.

Warren L. Wagner
Basionym: Camissonia atwoodii Cronquist Great Basin Naturalist 46: 258. 1986
Treatment appears in FNA Volume 10.

Herbs annual, glandular puber­ulent. Stems several, 5–150 cm. Leaves in poorly defined basal rosette and cauline; petiole 0.7–3.4 cm; blade unlobed, broadly ovate to oblong-ovate, elliptic, or subcordate, 1.2–7.6 × 0.8–5.5 cm, margins serrulate to serrate-denticulate, brown oil cells prominently lining veins abaxially. Racemes erect, elongating in flower. Flowers opening at sunrise; buds without free tips; floral-tube 0.6–1 mm; sepals 5–7 mm; petals purple, fading darker purple, 7–14 mm; stamens 4 + 4, unequal, anthers 1.5–2 mm, glabrous, stigma exserted beyond anthers at anthesis. Capsules spreading to reflexed, clavate, 11–25 mm; pedicel 3–5 mm. Seeds 1.5–1.8 mm.


Phenology: Flowering Aug–Nov.
Habitat: Open slopes in desert shrub communities, on clay soil.
Elevation: 1100–1600 m.

Distribution

Utah.

Discussion

Chylismia atwoodii is known only from eastern Kane County, and only from a few collections, so is still poorly characterized morphologically, but clearly distinct among the purple-petaled species.

Selected References

None.

Lower Taxa

None.

"elongating" is not a number.

... more about "Chylismia atwoodii"
RDF feed
Androecium position
epigynous +
Anther fixation
versatile +
Anther pubescence
glabrous +
Anther some measurement
0.15 cm1.5 mm <br />0.0015 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
Author
Warren L. Wagner +
Authority
(Cronquist) W. L. Wagner & Hoch +
Basal leaf arrangement
alternate +
Basal rosette development
well-developed +
Basal rosette prominence
defined +
Base coloration
darker flecks +
Basionyms
Camissonia atwoodii +
Berry architecture or shape
nutlike +
Berry dehiscence
indehiscent +  and loculicidal +
Blade length
1.2 cm12 mm <br />0.012 m <br /> (7.6 cm76 mm <br />0.076 m <br />) +
Blade margin shape
lobed +, toothed +  and entire +
Blade presence
absent +
Blade shape
broadly ovate +  and oblong-ovate elliptic or subcordate +
Blade size
reduced +
Blade width
0.8 cm8 mm <br />0.008 m <br /> (5.5 cm55 mm <br />0.055 m <br />) +
Bud orientation
reflexed +  and erect +
Capsule architecture
pedicellate +
Capsule architecture or shape
nutlike +
Capsule condition or texture
dry +
Capsule course
curved +  and straight +
Capsule dehiscence
loculicidal +
Capsule orientation
spreading +  and reflexed +
Capsule shape
clavate +
Capsule some measurement
1.1 cm11 mm <br />0.011 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
Carpel quantity
Many (?) +
Cel reproduction
vegetative +
Distribution
Utah. +
Elevation
1100–1600 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 +
Filament architecture
dithecal +
Filament fixation
basifixed +  and versatile +
Filament fusion
distinct +
Floral-tube duration
deciduous +
Floral-tube presence
absent +
Floral-tube quantity
, +
Floral-tube some measurement
0.06 cm0.6 mm <br />6.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
Flower architecture
actinomorphic +
Flower architecture or arrangement or growth form
solitary +
Flower part duration
deciduous +
Flower part life cycle
anthesis +
Flower reproduction
bisexual +
Fruit architecture
pedicellate +
Fruit course
curved +  and straight +
Fruit dehiscence
loculicidal +
Fruit shape
oblong-cylindrical +, clavate +  and subterete +
Habitat
Open slopes in desert shrub communities, on clay soil. +
Herb architecture
caulescent +
Herb architecture or function or pubescence
glandular +
Herb duration
annual +
Inflorescence position
axillary +
Inflorescences raceme orientation
nodding +  and erect +
Lateral lobe shape
unlobed +  and lobed +
Leaf architecture
simple +
Leaf arrangement
alternate +
Leaf duration
deciduous +
Leaf position
cauline +
Leaf size
reduced +
Lobe architecture or course
irregular +
Lobe arrangement
scattered +
Lobe position
lateral +
Lobe presence
absent +
Lobe quantity
Many (?) +
Lobe size
reduced +
Locule quantity
many +
Margin architecture or shape
entire +, serrulate +, dentate +  and serrate +
Margin prominence
pronounced +
Margin shape
serrulate +  and serrate-denticulate +
Margin texture
membranous +
Nectary presence
absent +
Number of lower taxa
0 +
Oil cell coloration
brown +
Oil cell prominence
conspicuous +
Ovary architecture or structure in adjective form
4-locular +
Ovary position
inferior +
Ovule architecture
bitegmic +
Ovule arrangement or growth form
clustered +
Ovule orientation
anatropous +
Ovule quantity
numerous +  and 1 +
Pedicel some measurement
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
Perianth position
epigynous +
Petal arrangement
imbricate +
Petal arrangement or shape
convolute +
Petal coloration
fading darker +
Petal coloration or density
purple +
Petal presence
absent +
Petal quantity
4 +
Petal shape
clawed +
Petal some measurement
0.7 cm7 mm <br />0.007 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
Petiole some measurement
0.7 cm7 mm <br />0.007 m <br /> (3.4 cm34 mm <br />0.034 m <br />) +
Phenology
Flowering Aug–Nov. +
Pollen-grain dehiscence or orientation
longitudinal +
Pollen arrangement
singly +
Polyad arrangement
singly +
Publication title
Syst. Bot. Monogr. +
Publication year
2007 +
Raceme orientation
erect +
Raphide quantity
abundant +
Reference
None +
Rosette development
well-developed +
Rosette position
basal +  and cauline +
Row quantity
2 +
Secretion condition
wet +
Secretion condition or texture
dry +
Secretion relief
papillate +
Secretion shape
clavate +  and globose +
Seed quantity
7 +  and numerous +
Seed relief
pitted +
Seed shape
lenticular +  and narrowly ovoid +
Seed some measurement
0.15 cm1.5 mm <br />0.0015 m <br /> (0.18 cm1.8 mm <br />0.0018 m <br />) +
Sepal arrangement
singly +
Sepal arrangement or dehiscence
valvate +
Sepal coloration
purple +, pink +, red +  and green +
Sepal duration
deciduous +
Sepal orientation
reflexed +
Sepal quantity
4 +
Sepal some measurement
0.5 cm5 mm <br />0.005 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
Septum architecture
parenchymatous +
Septum arrangement
parietal +, axile +  and placentation +
Septum presence
absent +
Septum width
thin +
Series length or size
longer +
Series quantity
1 +, 4 +  and 2 +
Series size
subequal +
Series variability
equal +
Set length or size
longer +
Set quantity
2 +
Set variability
equal +
Shrub architecture
unarmed +
Shrub growth form
not clonal +
Shrub habitat
aquatic +, amphibious +  and terrestrial +
Slit dehiscence or orientation
longitudinal +
Spike architecture
leafy +
Stamen quantity
4 +
Stamen size
unequal +
Stamen size or quantity
2 times as many or as many as sepals +
Stem architecture
branched +
Stem growth form or orientation
prostrate +  and decumbent +
Stem orientation
erect +
Stem quantity
several +
Stem some measurement
5 cm50 mm <br />0.05 m <br /> (150 cm1,500 mm <br />1.5 m <br />) +
Stigma architecture
conical-peltate +
Stigma architecture or shape
capitate +  and entire +
Stigma quantity
1 +
Stigma shape
4-lobed +
Stipule architecture
long-petiolate +
Stipule duration
caducous +
Stipule position
intrapetiolar +
Stipule presence
absent +
Stipule size
small +
Style quantity
1 +
Subshrub architecture
unarmed +
Subshrub growth form
not clonal +
Subshrub habitat
aquatic +, amphibious +  and terrestrial +
Surface condition
wet +
Surface relief
non-papillate +
Synonyms
Camissonia sect. Tetranthera +  and Oenothera sect. Tetranthera +
Taxon family
Onagraceae +
Taxon name
Chylismia atwoodii +
Taxon parent
Chylismia sect. Chylismia +
Taxon rank
species +
Terminal lobe shape
elliptic +  and narrowly broadly ovate +
Tetrad arrangement
singly +
Tetrad dehiscence
3(-5)-aperturate +
Tip fusion
free +
Viscin thread dehiscence or orientation
longitudinal +
Viscin thread fusion
united +
Volume
Volume 10 +
Wing architecture
smooth +  and erose +
Wing condition or texture
dry +
Wing relief
papillate +
Wing width
thick +