Carex lemmonii

W. Boott

Bot. Gaz. 9: 93. 1884.

Common names: Lemmon’s sedge
IllustratedEndemic
Synonyms: Carex abramsii Mackenzie
Treatment appears in FNA Volume 23. Treatment on page 480. Mentioned on page 477, 479.

Plants densely or loosely cespitose; rhizomes slender, short. Culms to 80 cm. Leaves: blades 1.5–3 (–4) mm wide. Inflorescences usually less than 15 cm, proximal internodes usually less than 100 mm; peduncles of lateral spikes usually included or exserted less than 1 cm; proximal bracts with blade 8–75 mm, sheath cylindric, 6–25 mm, mouth not purple-banded, U-shaped, 0.7–1.3 (–1.5) mm wide. Spikes 4–6; lateral spikes pistillate androgynous, erect or, sometimes, proximal spikes pendent on long-exserted peduncles, 10–15 (–20) × (3–) 4.5–7 (–8) mm; terminal spike usually staminate, ± erect, 10–16 × (2.5–) 3–5 mm. Pistillate scales usually at least partly gold or redbrown with broad scarious margins and tip, sometimes all white, obovate to ovate, 1.8–3 × 1.1–1.8 mm, apex usually obtuse, sometimes short-awned. Staminate scales gold or reddish-brown with pale midvein and scarious margins, sometimes all white, obovate to elliptic, rarely ovate, (2.6–) 3–3.7 (–4.0) × 0.9–2 mm, apex obtuse. Anthers 1.4–2.5 (–2.7) mm. Perigynia spreading, usually green or with a few purple blotches, occasionally all purple, 10–16-veined, obovate to ovate, 2.7–3.5 (–4) × 1–1.7 mm, margins usually ciliate distally, glabrous; beak distinct, 0.7–1.2 mm, tip usually brown or purple, usually ciliate, distance from beak tip to achene apex less than 1.4 mm.


Phenology: Fruiting summer.
Habitat: Marshes, bogs
Elevation: 700–3000 m

Discussion

A variant of Carex lemmonii in the San Bernardino Mountains (occurring in the same general area as typical plants) approaches C. albida in leaf width and spike size and has mature perigynia 3.8–4.6 × 1–1.5 mm and mature achenes 1.7–1.9 × 0.8–1.2 mm. In Lassen, Plumas, and Butte counties, C. lemmonii has the white pistillate scales and perigynium beak characteristic of C. albida. A Sierran variant has few, appressed-ascending perigynia and may be distinct.

Selected References

None.

Lower Taxa

None.
... more about "Carex lemmonii"
0 cm0 mm <br />0 m <br /> (0.14 cm1.4 mm <br />0.0014 m <br />) +
biconvex;trigonous +
smaller +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.27 cm2.7 mm <br />0.0027 m <br />) +
0.14 cm1.4 mm <br />0.0014 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
hispidulous +, setose +  and glabrous +
Peter W. Ball +  and Joy Mastrogiuseppe +
W. Boott +
shortened +
tapered +  and rounded +
straight +
distinct +
bidentate +
0.07 cm0.7 mm <br />7.0e-4 m <br /> (0.12 cm1.2 mm <br />0.0012 m <br />) +
v--shaped +
0.8 cm8 mm <br />0.008 m <br /> (?) +  and 7.5 cm75 mm <br />0.075 m <br /> (?) +
1.5mm;3mm +
glumaceous +  and foliaceous +
2-ranked +  and arranged +
ascending +  and appressed +
scale-like +  and leaflike +
parallel +  and divergent +
terete +, rolled +  and plicate +
Lemmon’s sedge +
round +  and trigonous +
0 cm0 mm <br />0 m <br /> (80 cm800 mm <br />0.8 m <br />) +
2 cm20 mm <br />0.02 m <br /> (?) +
700–3000 m +
open +, pistillate +  and staminate +
hypogynous +  and subtending +
biconvex +  and trigonous +
Marshes, bogs +
0 cm0 mm <br />0 m <br /> (15 cm150 mm <br />0.15 m <br />) +
multi-ranked +, 2-ranked +, 3-ranked +  and alternate +
basal +  and cauline +
0.7 cm7 mm <br />0.007 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
0.45 cm4.5 mm <br />0.0045 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
purple blotches +
2.7mm;3.5mm +
obovate;ovate +
1mm +  and 1.7mm +
not purple-banded +
u--shaped +
0.07 cm0.7 mm <br />7.0e-4 m <br /> (0.13 cm1.3 mm <br />0.0013 m <br />) +
with (1-)3-6(-30) bristles and/or scales +
stipitate +, veined +  and veinless +
with a few purple blotches , occasionally all purple , 10-16-veined , obovate to ovate , 2.7-3.5(-4)×1-1.7 mm , margins +  and green +
0 cm0 mm <br />0 m <br /> (1 cm10 mm <br />0.01 m <br />) +
Fruiting summer. +
2-3(-4)-carpellate +
3 (?) +  and 1 (?) +
0 cm0 mm <br />0 m <br /> (10 cm100 mm <br />0.1 m <br />) +
scale-like +  and filiform +
1.5 cm15 mm <br />0.015 m <br /> (2 cm20 mm <br />0.02 m <br />) +
1 cm10 mm <br />0.01 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
adventitious +
staminate +  and pistillate +
0.37 cm3.7 mm <br />0.0037 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
white +, reddish-brown +, gold +  and redbrown +
0.3 cm3 mm <br />0.003 m <br /> (0.37 cm3.7 mm <br />0.0037 m <br />) +
basal +  and proximal +
ovate;obovate;elliptic +
0.9mm;2mm +
cylindric +
0.6 cm6 mm <br />0.006 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
Illustrated +  and Endemic +
exserted +  and included +
0 cm0 mm <br />0 m <br /> (1 cm10 mm <br />0.01 m <br />) +
1 (?) +  and 3 (?) +
septate +, hollow +  and solid +
compressed +, terete +  and trigonous +
papillate +
deciduous +
2-3(-4)-fid +
Carex abramsii +
Carex lemmonii +
Carex sect. Aulocystis +
species +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
gynecandrous +  and androgynous +
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
purple +  and brown +
stoloniferous +  and rhizomatous +
plant +  and cespitose +