Carex sect. Capituligerae

Kükenthal

Bot. Jahrb. Syst. 27: 495. 1899.

Treatment appears in FNA Volume 23.

Plants cespitose, short-rhizomatous. Culms red-purple at base. Leaves: basal sheaths not or slightly fibrous; sheath fronts membranous; blades filiform, glabrous. Inflorescence a single spike; bracts absent; spike androgynous. Proximal pistillate scales with apex obtuse. Perigynia eventually spreading, adaxial face veinless, abaxial face weakly few-veined, narrowly to broadly ovate, planoconvex in cross-section, 2–4 (–4.5) mm, base tapering, margins acutely angled, apex tapering or abruptly beaked, not glossy, glabrous; beak 0.3–1 mm, with abaxial suture, entire or bidentate. Stigmas 2. Achenes biconvex, smaller than bodies of perigynia; style deciduous.

Distribution

North America and Eurasia with austral disjuncts or vicariants

Discussion

Species 1–3 (1 in the flora).

Selected References

None.

Lower Taxa

"shortened" is not a number.

... more about "Carex sect. Capituligerae"
0.4 cm4 mm <br />0.004 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
planoconvex +  and ovate +
biconvex +
smaller +
beaked;tapering;obtuse +
David F. Murray +
Kükenthal +
tapering +
bidentate +  and entire +
0.03 cm0.3 mm <br />3.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
filiform +
0 cm0 mm <br />0 m <br /> (2 cm20 mm <br />0.02 m <br />) +
glumaceous +  and foliaceous +
2-ranked +  and arranged +
ascending +  and appressed +
scale-like +  and leaflike +
parallel +  and divergent +
terete +, rolled +  and plicate +
round +  and trigonous +
North America and Eurasia with austral disjuncts or vicariants +
open +, pistillate +  and staminate +
hypogynous +  and subtending +
biconvex +  and trigonous +
multi-ranked +, 2-ranked +, 3-ranked +  and alternate +
basal +  and cauline +
with (1-)3-6(-30) bristles and/or scales +
2-3(-4)-carpellate +
3 (?) +  and 1 (?) +
Bot. Jahrb. Syst. +
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. Capituligerae +
section +
plant +  and cespitose +