Carex lyngbyei

Hornemann in G. C. Oeder et al.

in G. C. Oeder et al., Fl. Dan. 11(32): 6, plate 1888. 1827.

Illustrated
Synonyms: Carex cryptocarpa C. A. Meyer Carex lyngbyei var. cryptocarpa (C. A. Meyer) Hultén Carex lyngbyei var. robusta (L. H. Bailey) Cronquist Carex salina var. robusta L. H. Bailey
Treatment appears in FNA Volume 23. Treatment on page 383. Mentioned on page 380, 382, 384, 385, 398.

Plants not cespitose. Culms obtusely or acutely angled, 25–130 cm, glabrous. Leaves: basal sheaths redbrown; sheaths of proximal leaves glabrous, fronts lacking spots and veins, apex U-shaped; blades hypostomic, 3–8 mm wide, abaxially papillose. Proximal bract longer than inflorescence, 3–6 mm wide. Spikes usually pendent; staminate 2–3; pistillate 2–4; proximal pistillate spike 1.8–5 cm × 5–7 mm, base obtuse. Pistillate scales redbrown to dark purple-brown, longer than perigynia, apex acuminate, awnless. Perigynia divergent, yellowbrown with pale-brown spots on apical 1/2, 5–7-veined on each face, somewhat inflated, loosely enclosing achenes, 2.5–3.5 × 1.6–2.5 mm, leathery, dull, base with stipe to 0.5 mm, apex obtuse or rounded, papillose; beak thickened, 0.1–0.3 mm. Achenes constricted on 1 or both margins, apex rounded; style base straight. 2n = 68, 70, 72.


Phenology: Fruiting Jul–Aug.
Habitat: Coastal salt marshes, brackish marshes
Elevation: 0–10 m

Distribution

V23 677-distribution-map.jpg

Greenland, B.C., Alaska, Calif., Oreg., Wash., Europe (Iceland)

Discussion

Carex lyngbyei is the common sedge of the Pacific coastal salt marshes. It may easily be distinguished from sympatric species by the large, pendent, pedunculate spikes and the leathery, yellow-brown perigynia.

Although the species is also reported to occur in Japan and Korea, some Asian collections show significant morphologic and habitat differences from the North American plants. It is probably most closely related to Carex paleacea and to the South American C. darwinii, and differs from C. paleacea primarily by having acute, rather than awned, scales. Previous reports from eastern North American were misidentifications (J. Cayouette 1987).

Selected References

None.

Lower Taxa

None.
... more about "Carex lyngbyei"
72 +, 70 +  and 68 +
biconvex +
constricted +
papillose +
pale-brown spots +
Lisa A. Standley +, Jacques Cayouette +  and Leo Bruederle +
Hornemann in G. C. Oeder et al. +
shortened +
not +  and fibrous +
bidentate +  and emarginate +
0.01 cm0.1 mm <br />1.0e-4 m <br /> (0.03 cm0.3 mm <br />3.0e-4 m <br />) +
papillose +
m--shaped +  and v--shaped +
3mm;8mm +
glumaceous +  and foliaceous +
2-ranked +  and arranged +
ascending +  and appressed +
scale-like +  and leaflike +
parallel +  and divergent +
terete +, rolled +  and plicate +
redbrown +  and brown +
25 cm250 mm <br />0.25 m <br /> (130 cm1,300 mm <br />1.3 m <br />) +
prophyllate +, subsessile +, pedunculate +  and staminate +
Greenland +, B.C. +, Alaska +, Calif. +, Oreg. +, Wash. +  and Europe (Iceland) +
0–10 m +
open +, pistillate +  and staminate +
hypogynous +  and subtending +
biconvex +  and trigonous +
Coastal salt marshes, brackish marshes +
multi-ranked +, 2-ranked +, 3-ranked +  and alternate +
basal +  and cauline +
with (1-)3-6(-30) bristles and/or scales +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
spreading +, ascending +  and erect +
0.16 cm1.6 mm <br />0.0016 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
Fruiting Jul–Aug. +
2-3(-4)-carpellate +
3 (?) +  and 1 (?) +
short-sheathing +, sheathless +  and leaflike +
0.3 cm3 mm <br />0.003 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
in G. C. Oeder et al., Fl. Dan. +
adventitious +
redbrown +  and dark purple-brown +
basal +  and proximal +
2-keeled +
ladder-fibrillose +  and veined +
cylindric +
Illustrated +
pistillate +  and staminate +
1.8 cm18 mm <br />0.018 m <br /> (5 cm50 mm <br />0.05 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
1 (?) +  and 3 (?) +
septate +, hollow +  and solid +
compressed +, terete +  and trigonous +
papillate +
0 cm0 mm <br />0 m <br /> (?) +  and 0.05 cm0.5 mm <br />5.0e-4 m <br /> (?) +
deciduous +
2-3(-4)-fid +
Carex cryptocarpa +, Carex lyngbyei var. cryptocarpa +, Carex lyngbyei var. robusta +  and Carex salina var. robusta +
Carex lyngbyei +
Carex sect. Phacocystis +
species +
, +  and staminate +
plant +  and not cespitose +