Difference between revisions of "Carex novae-angliae"
Ann. Lyceum Nat. Hist. New York 1: 67. 1824.
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Revision as of 19:06, 24 September 2019
Plants loosely cespitose; rhizomes ascending to erect, reddish to reddish brown, 0–10(–20) mm, slender. Culms 5–40 cm, weakly scabrous distally; bases not fibrous. Leaf blades green, equaling or exceeding culms, 0.7–1.5 mm wide, herbaceous, smooth to papillose abaxially, weakly scabrous adaxially. Inflorescences with both staminate and proximal spikes; peduncles of staminate spikes 1.9–5.9 mm; proximal nonbasal bracts leaflike, equaling or shorter than inflorescences. Spikes: proximal pistillate spikes 2–3 (basal spikes 0); cauline spikes remote, nonoverlapping, proximal 2 usually separated by more than 7 mm, with 3–10 perigynia; staminate spikes 4–15 × 0.7–1.3 mm. Scales: pistillate scales pale brown to pale reddish brown, ovate, 2–2.5 × 1–1.4 mm, shorter than to equaling perigynia, apex cuspidate to acuminate; staminate scales oblong to oblanceolate, 3.1–4.6 × 0.7–1.3 mm, apex long-acuminate to obtuse. Anthers 1.5–2.1 mm. Perigynia pale green, veinless, ellipsoid, 2.2–2.6 × 0.8–1 mm, longer than wide; beak 0.3–0.7 mm, straight, pale green, apical teeth 0.2–0.3 mm. Stigmas 3. Achenes dark brown, obovoid to ellipsoid, acutely trigonous in cross section, 1.4–1.7 × 0.7–0.9 mm.
Phenology: Fruiting early Jun–early Jul.
Habitat: Moist to mesic sites, in shade or partial shade under mixed deciduous forests, occasionally under spruce-hemlock canopies
Elevation: 100–1000 m
Distribution
St. Pierre and Miquelon, N.B., Nfld. and Labr., N.S., Ont., Que., Conn., Maine, Mass., Mich., N.H., N.Y., Pa., S.C., Vt., W.Va., Wis.
Discussion
Recently discovered plants on the coastal plain in South Carolina resemble Carex novae-angliae in habit and perigynium features and have well-developed basal spikes. They require further study to determine their relationships with other members of the section.
Selected References
None.