Carex socialis

Mohlenbrock & Schwegman

Brittonia 21: 77, fig. 1. 1969.

IllustratedEndemic
Treatment appears in FNA Volume 23. Treatment on page 289. Mentioned on page 287, 460.

Plants with short-creeping rhizomes to 6 cm. Culms 20–70 cm, 1.2–1.8 mm wide basally, 0.4–0.7 mm wide distally. Leaves: sheaths tight, green, fronts hyaline; ligules less than 2 mm, wider than long; widest leaf-blades 1.5–2.2 mm wide. Inflorescences with 3–5 spikes, 2.5–5 cm × 4–6 mm; proximal internodes more than 2 times as long as proximal spikes; proximal bracts to 5 cm; spikes with 4–9 ascending to spreading perigynia. Pistillate scales hyaline with green midvein, ovate, 1.5–2.3 × 1–1.5 mm, body 1/2–3/4 length of perigynium, apex acute to awned. Anthers 1 mm. Perigynia green, usually 7–11-veined abaxially, 3.2–4.2 × 0.7–1.3 mm, base of body spongy, thickened, longitudinally striate adaxially, spongy region 1–1.5 mm, margins serrulate distally; beak 0.7–1 mm, apical teeth 0.2–0.4 mm. Stigmas straight or slightly twisted or coiled, 0.03–0.06 mm wide. Achenes elliptic, 1.8–2.3 × 0.8–1 mm. 2n = 58.


Phenology: Fruiting mid–late spring.
Habitat: Lowland deciduous forests, usually on clay soils
Elevation: 50–500 m

Distribution

V23 490-distribution-map.jpg

Ala., Ark., Ga., Ill., Ind., Ky., Miss., Mo., N.C., Okla., S.C., Tenn., Tex.

Discussion

Selected References

None.

Lower Taxa

None.

"/2lengthofperigynium" is not declared as a valid unit of measurement for this property.

... more about "Carex socialis"
0.18 cm1.8 mm <br />0.0018 m <br /> (0.23 cm2.3 mm <br />0.0023 m <br />) +
biconvex +
smaller +
0.8mm;1mm +
1 cm10 mm <br />0.01 m <br /> (?) +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.04 cm0.4 mm <br />4.0e-4 m <br />) +
Peter W. Ball +
Mohlenbrock & Schwegman +
shortened +
white-hyaline +, hyaline +  and narrow +
red tinged +  and brown +
rounded +
bidentate +
0.07 cm0.7 mm <br />7.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
v--shaped +
0mm;20mm +
glumaceous +  and foliaceous +
2-ranked +  and arranged +
ascending +  and appressed +
scale-like +  and leaflike +
parallel +  and divergent +
terete +, rolled +  and plicate +
round +  and trigonous +
20 cm200 mm <br />0.2 m <br /> (70 cm700 mm <br />0.7 m <br />) +
0.4mm;0.7mm +
Ala. +, Ark. +, Ga. +, Ill. +, Ind. +, Ky. +, Miss. +, Mo. +, N.C. +, Okla. +, S.C. +, Tenn. +  and Tex. +
50–500 m +
open +, pistillate +  and staminate +
hypogynous +  and subtending +
biconvex +  and trigonous +
Lowland deciduous forests, usually on clay soils +
, +  and racemose +
sessile +  and pistillate +
multi-ranked +, 2-ranked +, 3-ranked +  and alternate +
basal +  and cauline +
0 cm0 mm <br />0 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
wider than long +
with (1-)3-6(-30) bristles and/or scales +
0.32 cm3.2 mm <br />0.0032 m <br /> (0.42 cm4.2 mm <br />0.0042 m <br />) +
ascending +  and spreading +
0.07 cm0.7 mm <br />7.0e-4 m <br /> (0.13 cm1.3 mm <br />0.0013 m <br />) +
Fruiting mid–late spring. +
2-3(-4)-carpellate +
3 (?) +  and 1 (?) +
0 cm0 mm <br />0 m <br /> (5 cm50 mm <br />0.05 m <br />) +
2+ times as long as proximal spikes +
0.1 cm1 mm <br />0.001 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
0 cm0 mm <br />0 m <br /> (6 cm60 mm <br />0.06 m <br />) +
adventitious +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.23 cm2.3 mm <br />0.0023 m <br />) +
basal +  and proximal +
1mm;1.5mm +
cylindric +
Illustrated +  and Endemic +
1 (?) +  and 3 (?) +
septate +, hollow +  and solid +
compressed +, terete +  and trigonous +
slightly twisted or coiled +  and straight +
papillate +
0.03mm +  and 0.06mm +
deciduous +
2-3(-4)-fid +
Carex socialis +
Carex sect. Phaestoglochin +
species +
rhizomatous +  and short-rhizomatous +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.22 cm2.2 mm <br />0.0022 m <br />) +