Carex calcifugens

Naczi

Novon 12: 512, fig. 2. 2002.

Treatment appears in FNA Volume 23. Treatment on page 453. Mentioned on page 451, 454.

Plants densely cespitose; rhizome internodes 0.2–7 mm, 1.2–2.2 mm thick. Culms sparingly purple-red to 2.7–5.2 (–5.6) cm high at base, 14–37 cm; longest vegetative shoots 23–45 cm, (0.8–) 1.4–1.6 times as tall as culms. Leaves: nonbasal sheaths glabrous; blades green, widest blades 2.6–4 mm wide, smooth abaxially. Inflorescences 19–34 cm, (0.88–) 0.94–0.99 of culm height; internode between proximalmost scales in proximalmost spike 3–4.3 mm; internode between distal lateral spikes (1–) 2.6–12 cm; longest internode (per plant) between distal lateral spikes 5.2–12 cm; peduncle of terminal spike 3.1–54 (–73) mm, longest per plant 17–54 (–73) mm; proximal bract sheaths tight, apex concave or truncate; ligules 1–4.9 (–9.6) mm; blades uniformly green, blade of distalmost lateral bract exceeding terminal spike, longest (per plant) bract blade of distalmost lateral spike 6.1–15 cm. Spikes 4–5 spikes, widely separate or distal 2–3 spikes overlapping, proximalmost spike usually basal; lateral spikes pistillate, with 2–8 perigynia, longest spikes per plant with 5–8, 11–17 × 4.5–8.5 mm, ratio of longest lateral spike length (in mm) to flower number = 2.2–2.4; terminal spike 8–35 × 1.4–2.5 mm, longest per plant 14–35 mm, exceeding distlmost lateral spike. Pistillate scales 3.6–5.7 × 1.8–2.1 (–2.4) mm, body (2.2–) 2.5–3 mm, midrib prolonged as awn 01–3.2 mm. Staminate scales 4.3–5.8 × 1.4–1.9 mm, apex usually acute, occasionally obtuse, awnless. Anthers 3.8–4.2 mm. Perigynia distichously imbricate, prominently 48–63-veined, obovate or narrowly obovate, obtusely trigonous in cross-section, (3.7–) 3.9–5 × 1.6–2 (–2.1) mm, 2.1–2.5 (–2.7) times as long as wide, 1.5–2 times as long as achene bodies, base gradually tapered, apex contracted; beak straight or excurved 10–30°, (0.4–) 0.6–1 mm, 0.08–0.21 of perigynium length. Achenes, 2.6–3.4 × 1.4–1.9 mm, body 2–2.6 mm, tightly enveloped by perigynia; stipe straight, 0.2–0.5 (–0.7) mm; beak straight, (0.1) –0.2 (–0.3) mm.


Phenology: Fruiting spring.
Habitat: Mesic deciduous forests, in sandy loams and sands, usually on stream banks slopes
Elevation: 0–40 m

Discussion

Of conservation concern.

Carex calcifugens is rare, local, and usually occurs in small populations. It frequently associates with C. abscondita and C. striatula.

Selected References

None.

Lower Taxa

None.

"prolonged" is not a number."-2timesaslongasachenebodies" is not declared as a valid unit of measurement for this property.

... more about "Carex calcifugens"
0.26 cm2.6 mm <br />0.0026 m <br /> (0.34 cm3.4 mm <br />0.0034 m <br />) +
trigonous +
smaller +
1.4mm;1.9mm +
0.38 cm3.8 mm <br />0.0038 m <br /> (0.42 cm4.2 mm <br />0.0042 m <br />) +
Robert F. C. Naczi +  and Charles T. Bryson +
0.1 cm1 mm <br />0.001 m <br /> (0.32 cm3.2 mm <br />0.0032 m <br />) +
shortened +
tapered +
Griseae +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (0.06 cm0.6 mm <br />6.0e-4 m <br />) +
straight +
0.08;0.21 +
excurved +
0.06 cm0.6 mm <br />6.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
5.2 cm52 mm <br />0.052 m <br /> (12 cm120 mm <br />0.12 m <br />) +
1 cm10 mm <br />0.01 m <br /> (2.6 cm26 mm <br />0.026 m <br />) +
2.6 cm26 mm <br />0.026 m <br /> (12 cm120 mm <br />0.12 m <br />) +
m--shaped +
0mm;20mm +
0.22 cm2.2 mm <br />0.0022 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.26 cm2.6 mm <br />0.0026 m <br />) +
glumaceous +  and foliaceous +
2-ranked +  and arranged +
6.1 cm61 mm <br />0.061 m <br /> (15 cm150 mm <br />0.15 m <br />) +
ascending +  and appressed +
scale-like +  and leaflike +
parallel +  and divergent +
terete +, rolled +  and plicate +
0.2 cm2 mm <br />0.002 m <br /> (0.21 cm2.1 mm <br />0.0021 m <br />) +
0.39 cm3.9 mm <br />0.0039 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
1.6mm +  and 2mm +
purple-red +
2.7 cm27 mm <br />0.027 m <br /> (?) +  and 5.2 cm52 mm <br />0.052 m <br /> (?) +
round +  and trigonous +
14 cm140 mm <br />0.14 m <br /> (37 cm370 mm <br />0.37 m <br />) +
Fla. +, Ga. +, N.C. +  and S.C. +
0–40 m +
open +, pistillate +  and staminate +
hypogynous +  and subtending +
biconvex +  and trigonous +
Mesic deciduous forests, in sandy loams and sands, usually on stream banks slopes +
0.94 +  and 0.99 +
19 cm190 mm <br />0.19 m <br /> (34 cm340 mm <br />0.34 m <br />) +
multi-ranked +, 2-ranked +, 3-ranked +  and alternate +
basal +  and cauline +
0.1 cm1 mm <br />0.001 m <br /> (0.49 cm4.9 mm <br />0.0049 m <br />) +
(0.8-)1.4-1.6 times as tall as culms +
23 cm230 mm <br />0.23 m <br /> (45 cm450 mm <br />0.45 m <br />) +
with (1-)3-6(-30) bristles and/or scales +
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yellowbrown +  and dark-brown +
2.1-2.5(-2.7) +
Fruiting spring. +
2-3(-4)-carpellate +
5.4 cm54 mm <br />0.054 m <br /> (7.3 cm73 mm <br />0.073 m <br />) +
0.45 cm4.5 mm <br />0.0045 m <br /> (0.85 cm8.5 mm <br />0.0085 m <br />) +
1.4 cm14 mm <br />0.014 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
3 (?) +  and 1 (?) +
0.3 cm3 mm <br />0.003 m <br /> (0.43 cm4.3 mm <br />0.0043 m <br />) +
0.12 cm1.2 mm <br />0.0012 m <br /> (0.22 cm2.2 mm <br />0.0022 m <br />) +
adventitious +
staminate +  and pistillate +
0.21 cm2.1 mm <br />0.0021 m <br /> (0.24 cm2.4 mm <br />0.0024 m <br />) +
0.43 cm4.3 mm <br />0.0043 m <br /> (0.58 cm5.8 mm <br />0.0058 m <br />) +
basal +  and proximal +
2-keeled +
1.4mm;1.9mm +
hispidulous +
cylindric +
overlapping +  and separate +
5.4 cm54 mm <br />0.054 m <br /> (7.3 cm73 mm <br />0.073 m <br />) +
0.31 cm3.1 mm <br />0.0031 m <br /> (5.4 cm54 mm <br />0.054 m <br />) +
1 (?) +  and 3 (?) +
septate +, hollow +  and solid +
compressed +, terete +  and trigonous +
papillate +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.07 cm0.7 mm <br />7.0e-4 m <br />) +
straight +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (?) +  and 0.05 cm0.5 mm <br />5.0e-4 m <br /> (?) +
deciduous +
2-3(-4)-fid +
Carex sect. Oligocarpae +
Carex calcifugens +
Carex sect. Griseae +
species +
longest;8mm;35mm +
0.14 cm1.4 mm <br />0.0014 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
plant +  and cespitose +
2.6mm +  and 4mm +