Carex paeninsulae

Naczi E. L. Bridges & Orzell

Novon 12: 514, fig. 3. 2002.

Treatment appears in FNA Volume 23. Treatment on page 455. Mentioned on page 450, 451, 453.

Plants loosely cespitose; rhizome internodes 7–58 mm, 1.2–2.2 mm thick. Culms purple-red to 4.8–11.4 cm at base, 8.9–39 cm; vegetative shoots 33–59 cm, 1.4–2.2 times as tall as culms. Leaves: green, widest blades 3–4.6 mm wide. Inflorescences 8.1–29 cm, 0.73–0.95 of culm height; internode between proximalmost scales in proximalmost spike 2.4–3.5 mm; internode between distal lateral spikes 0.4–7.4 (–9.8) cm, longest internode between distal lateral spikes 0.9–7.4 (–9.8) cm; peduncle of terminal spike 0.3–3.2 (–6.8) cm, longest peduncle per plant 0.87–3.2 (–6.8) cm; proximal bract sheaths tight, hyaline band of adaxial face of sheath with apex truncate or concave; ligules 4–4.9 (–9.6) mm; blades uniformly green, bract blade of distalmost lateral spike exceeding terminal spike, longest bract blade of distalmost lateral spike 3.2–9.5 cm. Spikes 4–6, distalmost 2–3 spikes overlapping or, rarely, all spikes separate; lateral spikes pistillate, with 2–12 perigynia, longest spike per plant with (5–) 7–12, 7–20 × 3.5–4.8 mm, ratio of longest lateral spike length (in mm) to flower number = 1.8–2.5; terminal spike 14–38 × 1.2–2.1 mm, longest per plant 17–38 mm, exceeding distalmost lateral spike Pistillate scales 2.5–4.2 × 1.4–2.2 mm, body 1.5–2.4 mm, midrib prolonged as awn 0.4–2.4 mm. Staminate scales 3.9–4.8 × 1.2–1.8 mm, apex acute, awn 0–2.2 mm. Perigynia distichously imbricate, prominently 49–66-veined, slightly inflated, narrowly obovate in outline, obtusely trigonous in cross-section, 4.1–4.7 × 1.4–1.6, 2.7–3.1 times as long as wide, 1.8–1.9 times as long as achene bodies, base gradually tapered, apex gradually tapered; beak absent or straight, 0–0.4 mm, 0–0.1 of perigynium length. Achenes 2.9–3.4 × 1.3–1.4 mm, tightly enveloped by perigynia, base abruptly contracted, apex abruptly contracted; stipe 0.5–0.6 mm; body 2.2–2.6 mm; beak straight, 0.1–0.3 mm.


Phenology: Fruiting spring.
Habitat: Mesic deciduous forests, in sandy loams
Elevation: 0–30 m

Discussion

Of conservation concern.

Carex paeninsulae is rare and restricted to the northern half of the Florida peninsula.

Selected References

None.

Lower Taxa

None.

"prolonged" is not a number."-1.9timesaslongasachenebodies" is not declared as a valid unit of measurement for this property.

... more about "Carex paeninsulae"
0.29 cm2.9 mm <br />0.0029 m <br /> (0.34 cm3.4 mm <br />0.0034 m <br />) +
trigonous +
smaller +
1.3mm;1.4mm +
Robert F. C. Naczi +  and Charles T. Bryson +
Naczi E. L. Bridges & Orzell +
0 cm0 mm <br />0 m <br /> (0.22 cm2.2 mm <br />0.0022 m <br />) +
shortened +
tapered +
Griseae +
straight +
excurved +
0.01 cm0.1 mm <br />1.0e-4 m <br /> (0.03 cm0.3 mm <br />3.0e-4 m <br />) +
7.4 cm74 mm <br />0.074 m <br /> (9.8 cm98 mm <br />0.098 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (7.4 cm74 mm <br />0.074 m <br />) +
m--shaped +
0mm;20mm +
0.22 cm2.2 mm <br />0.0022 m <br /> (0.26 cm2.6 mm <br />0.0026 m <br />) +
glumaceous +  and foliaceous +
2-ranked +  and arranged +
3.2 cm32 mm <br />0.032 m <br /> (9.5 cm95 mm <br />0.095 m <br />) +
ascending +  and appressed +
scale-like +  and leaflike +
parallel +  and divergent +
terete +, rolled +  and plicate +
purple-red +
round +  and trigonous +
8.9 cm89 mm <br />0.089 m <br /> (39 cm390 mm <br />0.39 m <br />) +
0–30 m +
open +, pistillate +  and staminate +
hypogynous +  and subtending +
1.8 +  and 2.5 +
biconvex +  and trigonous +
Mesic deciduous forests, in sandy loams +
0.73 +  and 0.95 +
8.1 cm81 mm <br />0.081 m <br /> (29 cm290 mm <br />0.29 m <br />) +
multi-ranked +, 2-ranked +, 3-ranked +  and alternate +
basal +  and cauline +
0.4 cm4 mm <br />0.004 m <br /> (0.49 cm4.9 mm <br />0.0049 m <br />) +
with (1-)3-6(-30) bristles and/or scales +
yellowbrown +  and dark-brown +
Fruiting spring. +
2-3(-4)-carpellate +
3.2 cm32 mm <br />0.032 m <br /> (6.8 cm68 mm <br />0.068 m <br />) +
1.7 cm17 mm <br />0.017 m <br /> (3.8 cm38 mm <br />0.038 m <br />) +
3 (?) +  and 1 (?) +
0.24 cm2.4 mm <br />0.0024 m <br /> (0.35 cm3.5 mm <br />0.0035 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 +
0.39 cm3.9 mm <br />0.0039 m <br /> (0.48 cm4.8 mm <br />0.0048 m <br />) +
basal +  and proximal +
2-keeled +
1.2mm;1.8mm +
hispidulous +
cylindric +
1.4-2.2 times as tall as culms +
33 cm330 mm <br />0.33 m <br /> (59 cm590 mm <br />0.59 m <br />) +
separate +, , +  and overlapping +
3.2 cm32 mm <br />0.032 m <br /> (6.8 cm68 mm <br />0.068 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (3.2 cm32 mm <br />0.032 m <br />) +
7.4 cm74 mm <br />0.074 m <br /> (9.8 cm98 mm <br />0.098 m <br />) +
0.9 cm9 mm <br />0.009 m <br /> (7.4 cm74 mm <br />0.074 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 /> (?) +  and 0.06 cm0.6 mm <br />6.0e-4 m <br /> (?) +
deciduous +
2-3(-4)-fid +
Carex sect. Oligocarpae +
Carex paeninsulae +
Carex sect. Griseae +
species +
longest;14mm;38mm +
0.12 cm1.2 mm <br />0.0012 m <br /> (0.21 cm2.1 mm <br />0.0021 m <br />) +
plant +  and cespitose +
3mm +  and 4.6mm +