Carex styloflexa

Buckley

Amer. J. Sci. Arts 45: 174. 1843.

IllustratedEndemic
Treatment appears in FNA Volume 23. Treatment on page 434. Mentioned on page 433, 435.

Culms densely tufted, central, ascending or lax, 24–82 cm × 0.8–1.6 mm. Leaves: basal sheaths light-brown to brown; sheaths green or yellow-green, 2–26 mm; blades ascending, green or yellow-green, midrib well developed abaxially, 2 lateral-veins well developed adaxially, flat, 18–44 cm × 12–14 mm, blade of overwintering leaves smooth abaxially. Inflorescences: peduncles of proximal spikes 0–12 cm, arising in proximal 1/3 of culm, distal lateral spikes not exerted; peduncles of terminal spike 0–2.8 cm; bracts 8–21 × 0.5–4 mm, blade of distal lateral spike linear, narrower than spikes; widest bract blade of distalmost lateral spike 0.5–3.4 mm wide. Spikes 3 (–4) per culm; lateral spikes 6–9 (–15) × 4–6 mm, distal ones separate; terminal spike 11–35 × 1.8–3 mm, exceeding distal lateral spike. Pistillate scales 2–2.5 × 0.8–1.2 mm, apex acute. Staminate scales 3.2–4.2 × 1–1.2 mm, margins hyaline or brown tinged, apex acute. Anthers 3.8–4 mm. Perigynia 4–20 per spike, closely to loosely overlapping, ratio of longer lateral spike length to perigynia number 0.8–3.4, aggregated, spreading, finely, conspicuously (22–) 25–32-veined, narrowly elongate ovate, 3.5–5.5 × 1.2–1.6 mm, 1.9–2.3 times as long as achene bodies; beak excurved, 0.5–1.7 mm. Achenes elongate-obovoid, 2.2–3.2 × 1–1.4 mm. 2n = 48.


Phenology: Fruiting spring.
Habitat: Wet, sandy, acidic soils, around springs, seeps, and small streams, under deciduous or mixed deciduous-evergreen forests
Elevation: 0–1000 m

Distribution

V23 794-distribution-map.jpg

Ala., Conn., Del., D.C., Fla., Ga., Ky., La., Md., Miss., N.J., N.Y., N.C., Ohio, Pa., S.C., Tenn., Tex., Va.

Discussion

Selected References

None.

Lower Taxa

None.

No values specified.

... more about "Carex styloflexa"
0.22 cm2.2 mm <br />0.0022 m <br /> (0.32 cm3.2 mm <br />0.0032 m <br />) +
elongate-obovoid +
1mm;1.4mm +
0.38 cm3.8 mm <br />0.0038 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
Charles T. Bryson +  and Robert F. C. Naczi +
Buckley +
shortened +
light-brown;brown +
tapering +
Laxiflorae +
excurved +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.17 cm1.7 mm <br />0.0017 m <br />) +
yellow-green +  and green +
m--shaped +
narrower +
glumaceous +  and foliaceous +
2-ranked +  and arranged +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.34 cm3.4 mm <br />0.0034 m <br />) +
0.8 cm8 mm <br />0.008 m <br /> (2.1 cm21 mm <br />0.021 m <br />) +
ascending +  and appressed +
scale-like +  and leaflike +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
parallel +  and divergent +
terete +, rolled +  and plicate +
purple +  and brown +
24 cm240 mm <br />0.24 m <br /> (82 cm820 mm <br />0.82 m <br />) +
round +  and trigonous +
0.8mm;1.6mm +
Ala. +, Conn. +, Del. +, D.C. +, Fla. +, Ga. +, Ky. +, La. +, Md. +, Miss. +, N.J. +, N.Y. +, N.C. +, Ohio +, Pa. +, S.C. +, Tenn. +, Tex. +  and Va. +
0–1000 m +
open +, pistillate +  and staminate +
hypogynous +  and subtending +
biconvex +  and trigonous +
Wet, sandy, acidic soils, around springs, seeps, and small streams, under deciduous or mixed deciduous-evergreen forests +
18 cm180 mm <br />0.18 m <br /> (44 cm440 mm <br />0.44 m <br />) +
1.2 cm12 mm <br />0.012 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
prophyllate +, pedunculate +  and pistillate +
0.9 cm9 mm <br />0.009 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
0.6 cm6 mm <br />0.006 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
multi-ranked +, 2-ranked +, 3-ranked +  and alternate +
overwintering +
basal +  and cauline +
brown tinged +  and hyaline +
0 cm0 mm <br />0 m <br /> (2.8 cm28 mm <br />0.028 m <br />) +
with (1-)3-6(-30) bristles and/or scales +
(22-)25-32-veined +
aggregated +  and overlapping +
not black-mottled +, yellowbrown +  and dark-brown +
0.12 cm1.2 mm <br />0.0012 m <br /> (0.16 cm1.6 mm <br />0.0016 m <br />) +
Fruiting spring. +
2-3(-4)-carpellate +
3 (?) +  and 1 (?) +
long-sheathing +  and leaflike +
awned +  and acute +
Amer. J. Sci. Arts +
adventitious +
staminate +  and pistillate +
0.32 cm3.2 mm <br />0.0032 m <br /> (0.42 cm4.2 mm <br />0.0042 m <br />) +
basal +  and proximal +
2-keeled +
1mm;1.2mm +
cylindric +
0.2 cm2 mm <br />0.002 m <br /> (2.6 cm26 mm <br />0.026 m <br />) +
Illustrated +  and Endemic +
1 (?) +  and 3 (?) +
septate +, hollow +  and solid +
compressed +, terete +  and trigonous +
papillate +
deciduous +
2-3(-4)-fid +
Carex styloflexa +
Carex sect. Laxiflorae +
species +
0.18 cm1.8 mm <br />0.0018 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
plant +  and cespitose +