Carex davyi

Mackenzie

Bull. Torrey Bot. Club 43: 606. 1917.

IllustratedEndemic
Treatment appears in FNA Volume 23. Treatment on page 359. Mentioned on page 343, 360.

Plants densely cespitose. Culms 23–37 cm. Leaves: sheaths adaxially white-hyaline, summits U-shaped or rounded; distal ligules 1–2.5 mm; blades 2–4 per fertile culm, 7–13 cm × (1.5–) 2–3 mm. Inflorescences open, brown or orangebrown, (1–) 1.8–3 cm × 6–11 mm; proximal internode 4.5–9 mm; 2d internode, when present, 2–7 mm; proximal bracts scalelike or tipped with stout awn or bristle, shorter than inflorescences. Spikes (1–) 2–3, distant, distinct, narrowly oblanceloid to oblanceloid, (12–) 14–22 × 5.5–7 mm, base attenuate, apex acute to rounded. Pistillate scales reddish-brown or gold, with pale gold midstripe, lanceolate, 4.5–5.8 mm, 3/4 length of and narrower than perigynia, margin white, 0–0.15 mm wide, apex acute. Staminate scales with white-hyaline margin 0–0.2 mm wide. Perigynia appressed to appressed-ascending, green to gold, conspicuously 8–14-veined abaxially, conspicuously 4–8-veined adaxially, at least 3 adaxial veins longer than achene, lanceolate to ovate, planoconvex, 5.9–8.5 × 1.5–2.2 mm, (0.5–) 0.6–0.7 mm thick, margin flat, including wing 0.3–0.5 (–0.6) mm wide, ciliate-serrulate at least distally; beak redbrown or brown, often white-hyaline at tip, usually cylindric, unwinged, ± entire for 0.5–0.8 mm, occasionally flat, ± ciliate-serrulate, abaxial suture inconspicuous, distance from beak tip to achene (2.6–) 3–4.1 mm. Achenes ovate, elliptic, or obovate, (1.9–) 2–3 × 1.1–1.5 mm, 0.4–0.7 mm thick.


Phenology: Fruiting late summer.
Habitat: Moist meadows, rocky slopes
Elevation: 1500–3200 m

Discussion

Selected References

None.

Lower Taxa

None.

"narrower" is not a number."+timesaslongasinflorescences" is not declared as a valid unit of measurement for this property."not undefined" is not a number.

... more about "Carex davyi"
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.08 cm0.8 mm <br />8.0e-4 m <br />) +
0.26 cm2.6 mm <br />0.0026 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
obovate;elliptic;obovate;elliptic;ovate +
smaller +
0.4mm +  and 0.7mm +
planoconvex;lanceolate;ovate +
0.06 cm0.6 mm <br />6.0e-4 m <br /> (0.07 cm0.7 mm <br />7.0e-4 m <br />) +
bidentatate +
papillose +
Joy Mastrogiuseppe +, Paul E. Rothrock +, A. C. Dibble +  and A. A. Reznicek +
Mackenzie +
shortened +
persistent +
attenuate +
not enlarged +
cylindric +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
7 cm70 mm <br />0.07 m <br /> (13 cm130 mm <br />0.13 m <br />) +
2 (?) +  and 4 (?) +
v--shaped +
2mm;3mm +
glumaceous +  and foliaceous +
2-ranked +  and arranged +
ascending +  and appressed +
scale-like +  and leaflike +
parallel +  and divergent +
terete +, rolled +  and plicate +
round +  and trigonous +
23 cm230 mm <br />0.23 m <br /> (37 cm370 mm <br />0.37 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
1500–3200 m +
open +, pistillate +  and staminate +
hypogynous +  and subtending +
biconvex +  and trigonous +
Moist meadows, rocky slopes +
1 cm10 mm <br />0.01 m <br /> (1.8 cm18 mm <br />0.018 m <br />) +
orangebrown +  and brown +
0.2 cm2 mm <br />0.002 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
not prophyllate +, sessile +  and pistillate +
multi-ranked +, 2-ranked +, 3-ranked +  and alternate +
basal +  and cauline +
white-hyaline +  and white +
0.3mm +  and 0.5mm +
with (1-)3-6(-30) bristles and/or scales +
4-8-veined +  and 8-14-veined +
green +  and gold +
appressed +  and appressed-ascending +
Fruiting late summer. +
2-3(-4)-carpellate +
3 (?) +  and 1 (?) +
0.45 cm4.5 mm <br />0.0045 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
Bull. Torrey Bot. Club +
adventitious +
staminate +  and pistillate +
gold +  and reddish-brown +
basal +  and proximal +
lanceolate +
0.45 cm4.5 mm <br />0.0045 m <br /> (0.58 cm5.8 mm <br />0.0058 m <br />) +
herbaceous +  and membranous +
not differentiated +
cylindric +
Illustrated +  and Endemic +
1.2 cm12 mm <br />0.012 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
distinct +
1.4 cm14 mm <br />0.014 m <br /> (2.2 cm22 mm <br />0.022 m <br />) +
0.55 cm5.5 mm <br />0.0055 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
1 (?) +  and 3 (?) +
septate +, hollow +  and solid +
compressed +, terete +  and trigonous +
papillate +
deciduous +  and persistent +
2-3(-4)-fid +
rounded +  and u--shaped +
Carex davyi +
Carex sect. Ovales +
species +
plant +  and cespitose +