Scirpus lineatus

Michaux

Fl. Bor.-Amer. 1: 32. 1803.

IllustratedEndemic
Synonyms: Scirpus fontinalis R. M. Harper
Treatment appears in FNA Volume 23. Treatment on page 12. Mentioned on page 9, 13.

Plants cespitose; rhizomes short, stout. Culms: fertile ones lax, reclining, inflorescences lopping over to (or nearly to) ground; nodes sometimes with axillary bulblets. Leaves 4–9 per culm; sheaths of proximal leaves whitish; proximal sheaths and blades with septa few, inconspicuous; blades 18–32 cm × 6–13 mm. Inflorescences terminal and axillary in 2–3 distal leaves; rays ascending or divergent, rays and pedicels scabrous or scabrellous throughout or sometimes only in distal 1/2, rays often bearing axillary bulblets; bases of involucral-bracts green, not glutinous. Spikelets in open cymes, central spikelet of each cyme sessile, others long-pedicellate, spikelets ovoid, narrowly ovoid, or narrowly ellipsoid, 4–7 (–10) × 2–3 mm; scales brown to redbrown with green midribs, ovate to narrowly elliptic, 1.8–2.5 mm, apex mucronate, mucro 0.1–0.3 mm. Flowers: perianth bristles persistent, 6, slender, much longer than achene, strongly contorted and not or scarcely projecting beyond it, smooth, enclosed within scales or scarcely projecting beyond them; styles 3-fid. Achenes pale-brown, elliptic in outline, planoconvex or plumply trigonous, 1.1–1.5 × 0.6–0.7 mm. 2n = 36.


Phenology: Fruiting late spring–early summer (May–Jun).
Habitat: Usually along wooded streams, often associated with calcareous substrates
Elevation: 0–100 m

Distribution

V23 4-distribution-map.jpg

Ala., Fla., Ga., La., Miss., N.C., S.C., Va.

Discussion

Authors prior to 1966 incorrectly applied the name Scirpus lineatus to plants of S. pendulus and treated plants of S. lineatus as S. fontinalis (A. E. Schuyler 1966).

Selected References

None.

Lower Taxa

None.

"shortened" is not a number.

... more about "Scirpus lineatus"
0.11 cm1.1 mm <br />0.0011 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
papillose +
trigonous;planoconvex +
shorter to much +
0.6mm;0.7mm +
mucronate +
Alan T. Whittemore +  and Alfred E. Schuyler +
Michaux +
persistent +
18 cm180 mm <br />0.18 m <br /> (32 cm320 mm <br />0.32 m <br />) +
keeled +, v--shaped +  and flat +
0.6 cm6 mm <br />0.006 m <br /> (1.3 cm13 mm <br />0.013 m <br />) +
glumaceous +  and foliaceous +
2-ranked +  and arranged +
ascending +  and appressed +
Barbed (?) +, Toothed (?) +  and Curled (?) +
parallel +  and divergent +
terete +, rolled +  and plicate +
trigonous +
Ala. +, Fla. +, Ga. +, La. +, Miss. +, N.C. +, S.C. +  and Va. +
0–100 m +
hypogynous +  and subtending +
biconvex +  and trigonous +
Usually along wooded streams, often associated with calcareous substrates +
corymbose-paniculate +
multi-ranked +, 2-ranked +, 3-ranked +  and alternate +
cauline +, all +  and basal +
0.01 cm0.1 mm <br />1.0e-4 m <br /> (0.03 cm0.3 mm <br />3.0e-4 m <br />) +
long-pedicellate +
scabrellous +  and scabrous +
with (1-)3-6(-30) bristles and/or scales +
Fruiting late spring–early summer (May–Jun). +
2-3(-4)-carpellate +
3 (?) +  and 1 (?) +
Fl. Bor.-Amer. +
scabrellous +  and scabrous +
adventitious +
brown +  and redbrown +
basal +  and proximal +
ovate;narrowly elliptic +
0.18 cm1.8 mm <br />0.0018 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
cylindric +
not fibrous +
Illustrated +  and Endemic +
0.7 cm7 mm <br />0.007 m <br /> (1 cm10 mm <br />0.01 m <br />) +
0 cm0 mm <br />0 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
50 +  and 500 +
ellipsoid;ovoid;ellipsoid;ovoid;ovoid +
1 +  and 3 +
septate +, hollow +  and solid +
compressed +, terete +  and trigonous +
papillate +
Scirpus fontinalis +
Scirpus lineatus +
species +
not +  and rhizomatous +
plant +  and cespitose +