Arenaria lanuginosa var. saxosa

(A. Gray) Zarucchi

Sida 21: 753. 2004.

Illustrated
Basionym: Arenaria saxosa A. Gray Smithsonian Contr. Knowl. 5(6): 18. 1853
Synonyms: Arenaria confusa Rydberg Arenaria lanuginosa subsp. saxosa (A. Gray) Maguire Arenaria mearnsii A. Gray Arenaria saxosa var. cinerascens B. L. Robinson Arenaria saxosa var. mearnsii (Wooton & Standley) Kearney & Peebles Sperulastrum lanuginosum subsp. saxosum (A. Gray) W. A. Weber
Treatment appears in FNA Volume 5. Treatment on page 53.
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Illustrator:

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Stems 1–80+, erect or ascending to procumbent. Inflorescences proliferating, mostly terminal, leafy, 1–80+-flowered cymes. Pedicels erect to ascending (often arcuately so) in fruit, 2–25 mm. Petals 3/4–12/5 times as long as sepals. 2n = 40, 44.


Phenology: Flowering spring–summer.
Habitat: Forests, stream banks
Elevation: 1000-3100 m

Distribution

V5 105-distribution-map.gif

Ariz., Calif., Colo., N.Mex., Tex., Utah, Mexico (Baja California), Mexico (Chihuahua), Mexico (Coahuila)

Discussion

The varietal combination Arenaria lanuginosa var. cinerascens (B. L. Robinson) Shinners, often applied to this taxon, is not correct because the epithet of the earlier autonym A. saxosa var. saxosa has priority.

Selected References

None.

Lower Taxa

None.

"/5-11/2timesaslongassepals" is not declared as a valid unit of measurement for this property."/3-8+timesaslongasleaves" is not declared as a valid unit of measurement for this property."/4-3/4timesaslongasmidvein" is not declared as a valid unit of measurement for this property."/4-12/5timesaslongassepals" is not declared as a valid unit of measurement for this property.

not pustulate +  and pustulate +
Ronald L. Hartman +, Richard K. Rabeler +  and Frederick H. Utech +
(A. Gray) Zarucchi +
Arenaria saxosa +
Laciniate (?) +, Emarginate (?) +, Jagged (?) +, 2-fid (?) +  and Entire (?) +
linear-lanceolate +  and usually elliptic +
smaller +
herbaceous +  and scarious +
0.3 cm3 mm <br />0.003 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
1-80+-flowered +
dish--shaped +
expanded +
Ariz. +, Calif. +, Colo. +, N.Mex. +, Tex. +, Utah +, Mexico (Baja California) +, Mexico (Chihuahua) +  and Mexico (Coahuila) +
1000-3100 m +
straight +  and curved +
central +  and peripheral +
inconspicuous +
unisexual +  and bisexual +
lanceolate +  and ovate +
0 cm0 mm <br />0 m <br /> (0.55 cm5.5 mm <br />0.0055 m <br />) +
stalked +  and simple +
Forests, stream banks +
minute +
disc--shaped +  and dish +
in lines +  and pubescent +
terete +  and angular +
sessile +  and petiolate +
connate +
swollen +
3 +  and 5 +
crassinucellate +  and bitegmic +
campylotropous +
erect;ascending +
0.2 cm2 mm <br />0.002 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
fugacious +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
Flowering spring–summer. +
2 cm20 mm <br />0.02 m <br /> (15 cm150 mm <br />0.15 m <br />) +
tuberculate +, rugulose +  and smooth +
compressed +  and suborbicular +
persistent +
connate +  and distinct +
lanceolate;broadly ovate +
0.2 cm2 mm <br />0.002 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
0.01 cm0.1 mm <br />1.0e-4 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
Illustrated +
grooved +, branched +  and simple +
ascending;erect +
terete;ellipsoid +
5 cm50 mm <br />0.05 m <br /> (60 cm600 mm <br />0.6 m <br />) +
[30 +  and 3 +
papillate +
distinct +
filiform +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
Arenaria confusa +, Arenaria lanuginosa subsp. saxosa +, Arenaria mearnsii +, Arenaria saxosa var. cinerascens +, Arenaria saxosa var. mearnsii +  and Sperulastrum lanuginosum subsp. saxosum +
Arenaria lanuginosa var. saxosa +
Arenaria lanuginosa +
variety +
ascending;recurved +
divided +
10 +  and 8 +
0.3 cm3 mm <br />0.003 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
2mm;14mm +
rhizomatous +  and taprooted +
plant +  and not matted +
pubescence of simple hairs or stalked glands +  and glabrous +
11 +, 10 +, 8 +  and [7 +