Carex mackenziei

V. I. Kreczetowicz in V. L. Komarov et al.

in V. L. Komarov et al., Fl. URSS 3: 183. 1935.

Common names: Carex de Mackenzie
Illustrated
Basionyms: Carex norvegica Willdenow ex Schkuhr Besch. Riedgräs. 1: 50, plate S, fig. 66. 1801,
Treatment appears in FNA Volume 23. Treatment on page 317. Mentioned on page 255, 312, 314.

Plants loosely cespitose; rhizomes short; stolons present, often long. Culms sometimes curved, slender, 10–40 cm. Leaves: sheaths graybrown to pale-brown abaxially, inner band thin, hyaline, often red tinged, summit prolonged, concave; ligules as long as wide; blades yellowish green to pale gray-green, flat, 5–20 cm × 1–3 mm, subequal or shorter than culms, soft. Inflorescences 1.5–5 cm × 7–12 mm; proximal bracts scalelike, sometimes bristlelike, shorter than spikes. Spikes 3–6, gynecandrous, proximal spikes separate, usually 1–1.5 cm apart, distal approximate, individually distinct, containing 5–15 (–20) perigynia, oblong, 5–15 × 4–6 mm; terminal spike conspicuously staminate at base, long-clavate, 10–20 mm. Pistillate scales pale redbrown with lighter center and narrow hyaline margins, ovate, ± equaling, concealing perigynia, apex obtuse. Perigynia appressed-ascending, gray-green, often reddish dotted, often pale-brown in age, finely several-veined, oblongelliptic, 2.5–3.3 × 1.5–2 mm, widest near middle, coriaceous; beak entire or with few marginal teeth. Achenes pale-brown to graybrown, oblong, 1.75–2 × 1.25–1.5 mm, dull. 2n = 64.


Phenology: Fruiting Jun–Aug.
Habitat: Coastal and estuarine marshes, mostly brackish soils, seashores
Elevation: 0–600 m

Distribution

V23 556-distribution-map.jpg

Greenland, B.C., Man., N.B., Nfld. and Labr., N.W.T., N.S., Ont., P.E.I., Que., Sask., Yukon, Alaska, Maine, Europe, Asia

Discussion

Selected References

None.

Lower Taxa

None.

No values specified.

... more about "Carex mackenziei"
0.175 cm1.75 mm <br />0.00175 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
smaller +
1.25mm;1.5mm +
beaked +  and beakless +
papillose +  and smooth +
Heikki Toivonen +
V. I. Kreczetowicz in V. L. Komarov et al. +
shortened +
truncate +  and rounded +
Carex norvegica +
with few marginal teeth +  and entire +
inconspicuous +
0.01 cm0.1 mm <br />1.0e-4 m <br /> (0.03 cm0.3 mm <br />3.0e-4 m <br />) +
yellowish green +  and pale gray-green +
5 cm50 mm <br />0.05 m <br /> (20 cm200 mm <br />0.2 m <br />) +
v--shaped +
subequal or shorter +
1mm;3mm +
glumaceous +  and foliaceous +
2-ranked +  and arranged +
ascending +  and appressed +
scale-like +  and leaflike +
parallel +  and divergent +
terete +, rolled +  and plicate +
Carex de Mackenzie +
round +  and trigonous +
slender +
10 cm100 mm <br />0.1 m <br /> (40 cm400 mm <br />0.4 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
Greenland +, B.C. +, Man. +, N.B. +, Nfld. and Labr. +, N.W.T. +, N.S. +, Ont. +, P.E.I. +, Que. +, Sask. +, Yukon +, Alaska +, Maine +, Europe +  and Asia +
0–600 m +
open +, pistillate +  and staminate +
hypogynous +  and subtending +
biconvex +  and trigonous +
Coastal and estuarine marshes, mostly brackish soils, seashores +
red tinged +, hyaline +  and pale-brown +
red tinged +, hyaline +  and pale-brown +
sessile +  and pistillate +
multi-ranked +, 2-ranked +, 3-ranked +  and alternate +
basal +  and cauline +
angled;rounded +
with (1-)3-6(-30) bristles and/or scales +
pale-brown +, reddish dotted +  and gray-green +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.33 cm3.3 mm <br />0.0033 m <br />) +
appressed-ascending +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
Fruiting Jun–Aug. +
2-3(-4)-carpellate +
3 (?) +  and 1 (?) +
apart +  and separate +
in V. L. Komarov et al., Fl. URSS +
adventitious +
pale redbrown +
basal +  and proximal +
Illustrated +
gynecandrous +
1 (?) +  and 3 (?) +
septate +, hollow +  and solid +
compressed +, terete +  and trigonous +
papillate +
deciduous +
2-3(-4)-fid +
Carex mackenziei +
Carex sect. Glareosae +
species +
1 cm10 mm <br />0.01 m <br /> (2 cm20 mm <br />0.02 m <br />) +
plant +  and cespitose +