Silene rectiramea

B. L. Robinson

Bot. Gaz. 28: 134. 1899.

EndemicConservation concern
Treatment appears in FNA Volume 5. Treatment on page 200. Mentioned on page 172, 209.

Plants perennial; taproot stout; caudex much-branched, woody. Stems several, erect from decumbent base, branched, 20–40 cm, sparsely scabrid-puberulent, stipitate-glandular distally. Leaves 2 per node; basal shortly petiolate, blade oblanceolate, apex acute, sparsely puberulent; cauline sessile, in 3–6 pairs, blade lanceolate to narrowly elliptic-lanceolate, 3–8 cm × 3–8 mm, apex acute, scabrid-puberulent. Inflorescences cymose, open, branches few, ascending, elongate, 5–10 cm, flowers 1–3 per branch, bracteate; bracts lanceolate, 3–5 mm, apex acute. Pedicels usually shorter than or to 11/2 times calyx, scabrous-puberulent, ± viscid. Flowers bisexual and unisexual, all flowers having bisexual flowers and staminate unisexual flowers, 6–8 mm diam.; calyx prominently 10-veined, narrowly campanulate in flower, campanulate in fruit, 7–10 (–11) × 4–6 mm, only slightly contracted around carpophore, papery and membranous, sparsely scabrid with short glandular-setose hairs, veins parallel, green, with pale commissures, margins dentate, lobes broadly ovate (as broad as long), 1–2 mm, not ciliate; corolla cream or white, tinged purple, claw slightly exceeding calyx, narrowly triangular, auriculate, puberulent at base, limb oblong, 2-lobed, 2–4 mm, lobes entire, appendages 0.1–0.5 mm and broad, entire; stamens equaling petals; styles 3, equaling petals, reduced in functionally staminate flowers. Capsules ovoid-ellipsoid, equaling calyx, opening by 6 spreading teeth; carpophore ca. 2 mm. Seeds brown, reniform-triangular, ca. 1 mm; papillate mainly around margin.


Phenology: Flowering April-May.
Habitat: Pinyon pine woodland, dry slopes
Elevation: 1800-2100 m

Distribution

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Ariz.

Discussion

Of conservation concern.

Silene rectiramea is found in the Grand Canyon in Arizona. It is very similar to forms of S. verecunda and to S. thurberi. It is distinguished by its smaller flowers and fruiting calyces that are not or only slightly constricted around the carpophore and tend to be more sparsely pubescent with broader, shorter lobes. Also the appendages smaller and entire.

Selected References

None.

Lower Taxa

None.

"broad" is not a number.

... more about "Silene rectiramea"
awned +  and not hooded +
scabrid-puberulent +  and puberulent +
acute;acute;acute +
John K. Morton +
B. L. Robinson +
dentate +, emarginate to 2-fid +  and entire +
3 cm30 mm <br />0.03 m <br /> - 8 cm80 mm <br />0.08 m <br /> +
lanceolate +  and narrowly elliptic-lanceolate +
rarely +  and not succulent +
0.3 cm3 mm <br />0.003 m <br /> - 0.8 cm8 mm <br />0.008 m <br /> +
lanceolate +
reduced +
0.3 cm3 mm <br />0.003 m <br /> - 0.5 cm5 mm <br />0.005 m <br /> +
scarious +  and herbaceous +
elongate +
5 cm50 mm <br />0.05 m <br /> - 10 cm100 mm <br />0.1 m <br /> +
1 cm10 mm <br />0.01 m <br /> - 1.1 cm11 mm <br />0.011 m <br /> +
0.7 cm7 mm <br />0.007 m <br /> - 1 cm10 mm <br />0.01 m <br /> +
campanulate;campanulate +
membranous +  and papery +
0.4 cm4 mm <br />0.004 m <br /> - 0.6 cm6 mm <br />0.006 m <br /> +
ovoid-ellipsoid +
2 cm20 mm <br />0.02 m <br /> - ? +
much-branched +
conspicuous +
puberulent +
auriculate +  and triangular +
tinged purple +, white +  and cream +
dissected +  and variously--shaped +
dish--shaped +
expanded +
1800-2100 m +
peripheral +
staminate +  and bracteate +
0.6 cm6 mm <br />0.006 m <br /> - ? +  and 0.8 cm8 mm <br />0.008 m <br /> - ? +
conspicuous +
glandular-pubescent +
unisexual +  and bisexual +
stalked +  and simple +
Pinyon pine woodland, dry slopes +
glandular-setose +
open +  and cymose +
sessile +  and petiolate +
whorled +  and opposite +
connate +
conspicuous +
2-lobed;oblong +
2mm +  and 4mm +
purplish +  and green +
1 - ? +  and 4 - ? +
swollen +
3 +  and 5 +
crassinucellate +  and bitegmic +
campylotropous +
scabrous-puberulent +
0-11/2 times calyx +
off-white tinged with purple +, dusky purple +, scarlet +, pink +  and white +
fugacious +
reduced +
Flowering April-May. +
papillate +
reniform-triangular +
1 cm10 mm <br />0.01 m <br /> - ? +
2.8 cm28 mm <br />0.028 m <br /> - 4 cm40 mm <br />0.04 m <br /> +
persistent +
1 cm10 mm <br />0.01 m <br /> - 2.8 cm28 mm <br />0.028 m <br /> +
Endemic +  and Conservation concern +
rhizomatous +  and stoloniferous +
fewer +  and 10 +
prostrate +, decumbent +  and sprawling +
stipitate-glandular +  and scabrid-puberulent +
20 cm200 mm <br />0.2 m <br /> - 40 cm400 mm <br />0.4 m <br /> +
[30 +, 4 +, 5 +  and 3 +
papillate +
distinct +
filiform +
0.15 cm1.5 mm <br />0.0015 m <br /> - 2 cm20 mm <br />0.02 m <br /> +
Anotites +, Atocion +, Coronaria +, Gastrolychnis +, Lychnis +, Melandrium +, Physolychnis +, Viscaria +  and Wahlbergella +
Silene rectiramea +
species +
divided +
10-30-veined +
purplish +, whitish +  and green +
inflated +, terete +, cylindric +  and campanulate urceolate or clavate +
membranous +
3 - ? +  and 5 - ? +
stoloniferous +, rhizomatous +  and taprooted +
pubescence of simple hairs or stalked glands +  and glabrous +