Carex lenticularis var. lenticularis

Common names: Carex lenticulaire
IllustratedEndemic
Synonyms: Carex lenticularis var. albimontana Dewey Carex lenticularis var. blakei Fernald & Wiegand Carex lenticularis var. eucycla Howe Carex lenticularis var. merens
Treatment appears in FNA Volume 23. Treatment on page 392. Mentioned on page 389, 391, 393.

Culms 8–60 cm. Leaf-blades 1.5–3.5 mm wide. Inflorescences: peduncle of proximal spike 1 cm or longer; proximal bract white at base, 2–3.5 mm wide. Spikes: proximal 3–7 spikes pistillate, 1.2–6 cm × 2–4 mm,; terminal spike usually staminate. Pistillate scales pale-brown or redbrown. Perigynia (3–) 5–7-veined on each face, ellipsoid or ovoid, 1.7–3.2 × 1–1.6 mm; stipe to 0.1–0.25 mm; beak green or pale-brown, 0.1–0.2 mm. 2n = 86–88.


Phenology: Fruiting Jul–Aug.
Habitat: Seasonally flooded river and lakeshores
Elevation: 0–1500 m

Distribution

V23 695-distribution-map.jpg

St. Pierre and Miquelon, Alta., Man., N.B., Nfld. and Labr., N.W.T., N.S., Ont., P.E.I., Que., Sask., Maine, Mass., Mich., Minn., N.H., N.Y., Vt., Wis.

Discussion

Carex lenticularis var. lenticularis is a common shoreline species of ponds and streams in eastern North America. It can usually be distinguished from the common western taxon, var. lipocarpa, by the pale red-brown scales and lack of pigmentation on the perigynia as well as the shorter stipe; some high elevation and high latitude populations have pigmentation patterns similar to the western taxa.

Selected References

None.

Lower Taxa

None.

"prolonged" is not a number.

biconvex +
not constricted +
, +  and papillose +
Lisa A. Standley +, Jacques Cayouette +  and Leo Bruederle +
Michaux +
shortened +
not +  and fibrous +
distended +, attenuate +  and cuneate +
bidentate +  and emarginate +
0.01 cm0.1 mm <br />1.0e-4 m <br /> (0.02 cm0.2 mm <br />2.0e-4 m <br />) +
papillose +
m--shaped +  and v--shaped +
0mm;20mm +
glumaceous +  and foliaceous +
2-ranked +  and arranged +
ascending +  and appressed +
scale-like +  and leaflike +
parallel +  and divergent +
terete +, rolled +  and plicate +
Carex lenticulaire +
redbrown +  and brown +
8 cm80 mm <br />0.08 m <br /> (60 cm600 mm <br />0.6 m <br />) +
prophyllate +, subsessile +, pedunculate +  and staminate +
St. Pierre and Miquelon +, Alta. +, Man. +, N.B. +, Nfld. and Labr. +, N.W.T. +, N.S. +, Ont. +, P.E.I. +, Que. +, Sask. +, Maine +, Mass. +, Mich. +, Minn. +, N.H. +, N.Y. +, Vt. +  and Wis. +
0–1500 m +
open +, pistillate +  and staminate +
hypogynous +  and subtending +
biconvex +  and trigonous +
Seasonally flooded river and lakeshores +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
multi-ranked +, 2-ranked +, 3-ranked +  and alternate +
basal +  and cauline +
1 cm10 mm <br />0.01 m <br /> (?) +
with (1-)3-6(-30) bristles and/or scales +
0.17 cm1.7 mm <br />0.0017 m <br /> (0.32 cm3.2 mm <br />0.0032 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.16 cm1.6 mm <br />0.0016 m <br />) +
Fruiting Jul–Aug. +
2-3(-4)-carpellate +
3 (?) +  and 1 (?) +
short-sheathing +, sheathless +  and leaflike +
0.2 cm2 mm <br />0.002 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
Fl. Bor.-Amer. +
adventitious +
redbrown +  and pale-brown +
basal +  and proximal +
2-keeled +
ladder-fibrillose +  and veined +
cylindric +
Illustrated +  and Endemic +
1.2 cm12 mm <br />0.012 m <br /> (6 cm60 mm <br />0.06 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
1 (?) +  and 3 (?) +
septate +, hollow +  and solid +
compressed +, terete +  and trigonous +
papillate +
0.01 cm0.1 mm <br />1.0e-4 m <br /> (?) +  and 0.025 cm0.25 mm <br />2.5e-4 m <br /> (?) +
deciduous +
2-3(-4)-fid +
Carex lenticularis var. albimontana +, Carex lenticularis var. blakei +, Carex lenticularis var. eucycla +  and Carex lenticularis var. merens +
Carex lenticularis var. lenticularis +
Carex lenticularis +
variety +
plant +  and cespitose +