Carex peckii

Howe

Rep. (Annual) Regents Univ. State New York New York State Mus. 47: 166. 1894.

Common names: Carex de Peck
IllustratedEndemic
Synonyms: Carex clivicola Fernald & Weatherby
Treatment appears in FNA Volume 23. Treatment on page 540. Mentioned on page 532, 534, 541.

Plants loosely cespitose; rhizomes ascending, reddish-brown, 0–15 (–30) mm, slender. Culms 21–47 cm, smooth to weakly scabrous distally; bases not fibrous. Leaf-blades pale green, shorter than culms, 1–3.3 mm wide, herbaceous, papillose abaxially, scabrous adaxially. Inflorescences with both staminate and pistillate spikes; peduncles of staminate spikes 0.4–2.2 mm; proximal cauline bracts leaflike usually shorter than inflorescences. Spikes: proximal pistillate spikes 2–3 (basal spikes 0); cauline spikes with proximal 2 spikes overlapping, se!parated by less than 7 mm, with 3–10 perigynia; staminate spikes 5.3–8.6 × 0.8–1.7 mm. Scales: pistillate scales reddish-brown to pale-brown, with broad white margins, ovate, 2.2–3.2 × 1.2–1.8 mm, 1/2 to 2/3 length of perigynia, apex acute to acuminate,; staminate scales elliptic, 2.4–3.2 × 0.9–1.8 mm, apex acute. Anthers 1.4–1.5 mm. Perigynia light green, veinless, ellipsoid, 3.2–4.2 × 1.1–1.3 mm, longer than wide; beak straight, pale green, 0.7–1 mm, ciliate-serrulate, apical teeth 0.2–0.4 mm. Stigmas 3. Achenes brown, obovoid to ellipsoid, obtusely trigonous in cross-section, 1.9–2.4 × 1–1.3 mm. 2n = 36.


Phenology: Fruiting mid May–mid Jul.
Habitat: Mainly calcareous soils on dry to mesic slopes, in partial shade in rich, deciduous or mixed deciduous-coniferous, open woods, bases of slopes, or full sun on exposed outcrops
Elevation: 10–2000 m

Distribution

V23 1018-distribution-map.jpg

Alta., B.C., Man., N.B., N.S., Ont., Que., Sask., Alaska, Iowa, Maine, Mass., Mich., Minn., Nebr., N.H., N.Y., N.Dak., S.Dak., Vt., Wis., Wyo.

Discussion

Hybrids between Carex peckii and other members of the section have not been confirmed; occasional plants appear to combine its characteristics with those of other species, such as C. tonsa.

Selected References

None.

Lower Taxa

None.
... more about "Carex peckii"
0.19 cm1.9 mm <br />0.0019 m <br /> (0.24 cm2.4 mm <br />0.0024 m <br />) +
trigonous;obovoid;ellipsoid +
1mm;1.3mm +
0.14 cm1.4 mm <br />0.0014 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
beaked +, awned +  and cuspidate +
glabrous +  and pubescent +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.04 cm0.4 mm <br />4.0e-4 m <br />) +
William J. Crins +  and Jeff H. Rettig +
shortened +
rounded +  and tapering +
not fibrous +
ciliate-serrulate +
straight +
bidentate +  and bent +
0.07 cm0.7 mm <br />7.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
v--shaped +
2mm;4.5mm +
glumaceous +  and foliaceous +
2-ranked +  and arranged +
ascending +  and appressed +
scale-like +  and leaflike +
parallel +  and divergent +
terete +, rolled +  and plicate +
Carex de Peck +
brown +  and red +
scabrous +  and smooth to weakly +
round +  and trigonous +
21 cm210 mm <br />0.21 m <br /> (47 cm470 mm <br />0.47 m <br />) +
Alta. +, B.C. +, Man. +, N.B. +, N.S. +, Ont. +, Que. +, Sask. +, Alaska +, Iowa +, Maine +, Mass. +, Mich. +, Minn. +, Nebr. +, N.H. +, N.Y. +, N.Dak. +, S.Dak. +, Vt. +, Wis. +  and Wyo. +
10–2000 m +
open +, pistillate +  and staminate +
hypogynous +  and subtending +
biconvex +  and trigonous +
Mainly calcareous soils on dry to mesic slopes, in partial shade in rich, deciduous or mixed deciduous-coniferous, open woods, bases of slopes, or full sun on exposed outcrops +
prophyllate +, pedunculate +, staminate +, , +  and pistillate +
0.1 cm1 mm <br />0.001 m <br /> (0.33 cm3.3 mm <br />0.0033 m <br />) +
multi-ranked +, 2-ranked +, 3-ranked +  and alternate +
basal +  and cauline +
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 />) +
0 cm0 mm <br />0 m <br /> (1 cm10 mm <br />0.01 m <br />) +
0.11 cm1.1 mm <br />0.0011 m <br /> (0.13 cm1.3 mm <br />0.0013 m <br />) +
Fruiting mid May–mid Jul. +
2-3(-4)-carpellate +
3 (?) +  and 1 (?) +
scale-like +  and filiform +
Rep. (Annual) Regents Univ. State New York New York State Mus. +
1.5 cm15 mm <br />0.015 m <br /> (3 cm30 mm <br />0.03 m <br />) +
reddish-brown +
0 cm0 mm <br />0 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
adventitious +
staminate +  and pistillate +
reddish-brown +  and pale-brown +
0.24 cm2.4 mm <br />0.0024 m <br /> (0.32 cm3.2 mm <br />0.0032 m <br />) +
basal +  and proximal +
0.9mm;1.8mm +
cylindric +
Illustrated +  and Endemic +
staminate +  and pistillate +
overlapping +
0.53 cm5.3 mm <br />0.0053 m <br /> (0.86 cm8.6 mm <br />0.0086 m <br />) +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (0.22 cm2.2 mm <br />0.0022 m <br />) +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.17 cm1.7 mm <br />0.0017 m <br />) +
1 (?) +  and 3 (?) +
septate +, hollow +  and solid +
compressed +, terete +  and trigonous +
papillate +
deciduous +
2-3(-4)-fid +
Carex clivicola +
Carex peckii +
Carex sect. Acrocystis +
species +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
stoloniferous +  and rhizomatous +
plant +  and cespitose +