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
Basionym: 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.

"shortened" is not a number.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. +
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 +
0.1 cm1 mm <br />0.001 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
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 +
1.5 cm15 mm <br />0.015 m <br /> (5 cm50 mm <br />0.05 m <br />) +
0.7 cm7 mm <br />0.007 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
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 +