Minuartia uniflora

(Walter) Mattfeld

Bot. Jahrb. Syst. 57(Beibl. 126): 28. 1921.

Common names: One-flower stitchwort
Endemic
Basionym: Stellaria uniflora Walter Fl. Carol., 141. 1788
Synonyms: Alsine uniflora (Walter) A. Heller Alsinopsis uniflora (Walter) Small Arenaria alabamensis (J. F. McCormick Bozeman & Spongberg) R. E. Wyatt Arenaria brevifolia Nuttall Minuartia alabamensis J. F. McCormick, Bozeman & Spongberg Sabulina uniflora (Walter) Small
Treatment appears in FNA Volume 5. Treatment on page 136. Mentioned on page 117, 126, 131.

Plants annual. Taproots filiform. Stems erect to ascending, green, 7–20 cm, glabrous, internodes of stems 1–7 times as long as leaves. Leaves not overlapping, connate proximally, with tight, herbaceous or scarious sheath 0.1–0.3 mm; blade straight to outwardly curved, widely spreading, green, flat, 1-veined abaxially, especially proximal, narrowly lanceolate to oblong, commonly linear, 2–20 × 0.3–1.5 mm, flexuous, margins not thickened, scarious, smooth, apex green to purple, rounded to acute, dull, glabrous; axillary leaves poorly developed. Inflorescences 7–25+-flowered, open cymes; bracts subulate to ovate, herbaceous, margins scarious. Pedicels 0.5–5 cm, glabrous. Flowers: hypanthium disc-shaped; sepals obscurely veined, ovate to elliptic or lanceolate (herbaceous portion elliptic to lanceolate), 2–3.5 mm, not enlarging in fruit, apex green, obtuse to rounded, not hooded, glabrous; petals oblanceolate to spatulate, 1.5–2.5 times as long as sepals, apex rounded, entire to shallowly notched. Capsules on stipe shorter than 0.1 mm, pyramidal-ovoid, 3.5–4 mm, longer than sepals. Seeds yellowish-brown, suborbiculate with radicle obscure, slightly compressed, 0.4–0.6 mm, tuberculate; tubercles low, rounded. 2n = 14.


Phenology: Flowering spring.
Habitat: Sandy or granitic outcrops
Elevation: 70-200 m

Discussion

Minuartia alabamensis was originally described to accommodate much-reduced plants from Alabama (J. F. McCormick et al. 1971). Subsequent studies have shown them to be conspecific with M. uniflora (R. Wyatt 1984).

Selected References

None.

Lower Taxa

None.

"-7timesaslongasleaves" is not declared as a valid unit of measurement for this property."-2.5timesaslongassepals" is not declared as a valid unit of measurement for this property.

... more about "Minuartia uniflora"
green +  and purple +
Richard K. Rabeler +, Ronald L. Hartman +  and Frederick H. Utech +
(Walter) Mattfeld +
Stellaria uniflora +
flexuous +, straight +  and outwardly curved +
0.2 cm2 mm <br />0.002 m <br /> (2 cm20 mm <br />0.02 m <br />) +
narrowly lanceolate +  and oblong +
? (?) +  and ? (?) +
0.3mm;1.5mm +
subulate +  and ovate +
reduced +
scarious +  and herbaceous +
pyramidal-ovoid +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
One-flower stitchwort +
axillary +  and terminal +
dish--shaped +
expanded +
Ala. +, Ga. +, N.C. +  and S.C. +
70-200 m +
straight +  and curved +
central +  and peripheral +
axillary +  and terminal +
inconspicuous +
unisexual +  and bisexual +
stalked +  and simple +
Sandy or granitic outcrops +
disc--shaped +  and dish +
sessile +  and petiolate +
not overlapping +
connate +
not thickened +
swollen +
3 +  and 5 +
crassinucellate +  and bitegmic +
campylotropous +
reflexed;erect;arcuate-spreading +
0.5 cm5 mm <br />0.005 m <br /> (5 cm50 mm <br />0.05 m <br />) +
Lilac (?) +, Pink (?) +  and White (?) +
fugacious +
Flowering spring. +
Bot. Jahrb. Syst. +
tuberculate +
compressed +  and suborbiculate +
0.6 cm6 mm <br />0.006 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
persistent +
distinct +
ovate;elliptic or lanceolate +
not enlarging +
0.2 cm2 mm <br />0.002 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
0.01 cm0.1 mm <br />1.0e-4 m <br /> (0.03 cm0.3 mm <br />3.0e-4 m <br />) +
scarious +  and herbaceous +
branched +  and simple +
erect;ascending +
7 cm70 mm <br />0.07 m <br /> (20 cm200 mm <br />0.2 m <br />) +
[30 +  and 3 +
papillate +
0.1 cm1 mm <br />0.001 m <br /> (?) +
distinct +
filiform +
0.06 cm0.6 mm <br />6.0e-4 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
Alsine uniflora +, Alsinopsis uniflora +, Arenaria alabamensis +, Arenaria brevifolia +, Minuartia alabamensis +  and Sabulina uniflora +
Minuartia uniflora +
Minuartia +
species +
divided +
10 +  and 8 +
erect +  and recurved +
rhizomatous +  and taprooted +
pubescence of simple hairs or stalked glands +  and glabrous +
23 +, 15 +, 14 +, 13 +, 12 +, 10 +, 9 +  and 7 +