Carex sect. Schiedeanae

Kükenthal in H. G. A. Engler

in H. G. A. Engler, Pflanzenr. 20[IV,38]: 255. 1909.

Treatment appears in FNA Volume 23.

Plants cespitose, short and stout-rhizomatous. Culms brown at base. Leaves: basal sheaths fibrous; sheath fronts membranous; blades V-shaped in cross-section when young, glabrous. Inflorescences racemose or, rarely, branched proximally, with (1–) 2–13 spikes; bracts leaflike, sheathless; lateral spikes androgynous, short-pedunculate or subsessile, cladoprophyllate; terminal spike androgynous. Proximal pistillate scales with apex acuminate or awned. Perigynia ascending, veined, with 2 strong marginal veins, somewhat stipitate, broadly elliptic to obovate, trigonous in cross-section, less than 10 mm, base tapering, apex tapering or abruptly beaked, stellate-pubescent; beak 0.6–1.5 mm, emarginate, oblique, bidentate, with teeth 0.3–0.7 mm mm. Stigmas 3. Achenes trigonous, smaller than bodies of perigynia; style deciduous, thickened at base.

Distribution

North America, n Mexico

Discussion

Species ca. 14 (1 in the flora).

Selected References

None.

Lower Taxa

"shortened" is not a number.

... more about "Carex sect. Schiedeanae"
trigonous +
smaller +
stellate-pubescent +
beaked;tapering;awned;acuminate +
A. A. Reznicek +
Kükenthal in H. G. A. Engler +
tapering +
bidentate +
0.06 cm0.6 mm <br />6.0e-4 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
v--shaped +
0 cm0 mm <br />0 m <br /> (2 cm20 mm <br />0.02 m <br />) +
2-ranked +  and arranged +
ascending +  and appressed +
scale-like +  and leaflike +
parallel +  and divergent +
terete +, rolled +  and plicate +
round +  and trigonous +
North America +  and n Mexico +
open +, pistillate +  and staminate +
hypogynous +  and subtending +
biconvex +  and trigonous +
, +  and racemose +
cladoprophyllate +, subsessile +  and short-pedunculate +
multi-ranked +, 2-ranked +, 3-ranked +  and alternate +
basal +  and cauline +
with (1-)3-6(-30) bristles and/or scales +
stipitate +  and veined +
0 cm0 mm <br />0 m <br /> (1 cm10 mm <br />0.01 m <br />) +
2-3(-4)-carpellate +
3 (?) +  and 1 (?) +
in H. G. A. Engler, Pflanzenr. +
adventitious +
basal +  and proximal +
2-keeled +
cylindric +
1 +  and 3 +
septate +, hollow +  and solid +
compressed +, terete +  and trigonous +
papillate +
deciduous +
2-3(-4)-fid +
Carex sect. Schiedeanae +
section +
0.03 cm0.3 mm <br />3.0e-4 m <br /> (0.07 cm0.7 mm <br />7.0e-4 m <br />) +
plant +  and cespitose +