Carex sect. Aulocystis Dumortier (Q82)

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Carex sect. Aulocystis is a taxon with the rank section within the genus Carex
Language Label Description Also known as
English
Carex sect. Aulocystis Dumortier
Carex sect. Aulocystis is a taxon with the rank section within the genus Carex

    Statements

    taxon/id/Carex sect. Aulocystis Dumortier
    0 references
    Carex sect. Aulocystis Dumortier
    Carex sect. Aulocystis
    Dumortier
    FNA Editorial Committee. 2002. Flora of North America north of Mexico. Volume 23: Cyperaceae. Oxford University Press, New York.
    accepted
    Carex sect. Aulocystis
    Temperate and artic regions of North America and Eurasia
    primarily in temperate Asia
    Plants cespitose, short to long rhizomatous, sometimes stoloniferous.
    Culms brown at base, shorter than leaves.
    Leaves: basal sheaths not fibrous;
    blades V-shaped in cross-section when young, proximal leaf-blades with lateral-veins equally prominent, distal leaf-blades at least 2 mm, glabrous.
    Inflorescences racemose, with 2–8+ spikes;
    proximal nonbasal bracts filiform or scalelike, sheathing at least 3 mm, longer than diameter of stem;
    lateral spikes pistillate, androgynous, or, rarely, staminate, pedunculate, prophyllate, pistillate scales ovoid, with not more than 25 perigynia;
    terminal spike staminate, androgynous, or gynecandrous.
    Proximal pistillate scales dark-brown to almost black, 1–3-veined, apex obtuse to acuminate.
    Perigynia ascending or spreading, purplish black at least distally, or black-mottled, veinless or weakly veined, sometimes with 2, strong, marginal veins, stipitate, lanceolate to ovate, biconvex or trigonous in cross-section, less than 10 mm, base tapered to rounded, apex tapering or abruptly beaked, glabrous, setose, or hispidulous;
    beak straight, ± bidentate.
    Stigmas (2–) 3.
    Achenes trigonous, rarely biconvex, smaller than bodies of perigynia;