Carex perglobosa

Mackenzie

Bull. Torrey Bot. Club 34: 606. 1908.

IllustratedEndemic
Treatment appears in FNA Volume 23. Treatment on page 311. Mentioned on page 308, 309.

Plants loosely cespitose. Culms often curved, bluntly trigonous, 5–15 cm, smooth-angled distally. Leaves: basal sheaths brown; ligules 0.4–1.6 mm; blades folded to involute, ± equaling culms, 0.8–2.2 (–2.5) mm wide. Inflorescences 1–1.8 cm; spikes ca. 8–15, essentially indistinguishable in dense globose to ovoid head. Pistillate scales reddish-brown to dark-brown, ± translucent with broad whitish hyaline margins, broadly ovate, ± equaling perigynia, apex obtuse to acute, body shiny. Anthers 1–1.5 mm. Perigynia dark-brown, finely 5–9-veined abaxially, faintly veined or essentially veinless adaxially, clearly inflated, broadly elliptic, 3.6–5 × 1.9–2.6 mm, delicate and membranous, shiny; stipe to 0.2 mm or essentially absent; beak poorly defined, 0.6–1.1 mm, smooth or slightly scabrous-margined.


Phenology: Fruiting Jul–Sep.
Habitat: Dry alpine tundra, especially scree slopes, uncommon and local
Elevation: 3600–4000 m

Discussion

Some collections of Carex perglobosa from Utah show some characteristics of C. vernacula (A. Cronquist et al. 1972+, vol. 6).

Selected References

None.

Lower Taxa

None.
... more about "Carex perglobosa"
biconvex +
smaller +
0.1 cm1 mm <br />0.001 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
A. A. Reznicek +
Mackenzie +
shortened +
white-hyaline +, hyaline +  and narrow +
rounded +
Foetidae +
scabrous-margined +  and smooth +
0.06 cm0.6 mm <br />6.0e-4 m <br /> (0.11 cm1.1 mm <br />0.0011 m <br />) +
folded +  and involute +
0mm;20mm +
2-ranked +  and arranged +
ascending +  and appressed +
scale-like +
parallel +  and divergent +
terete +, rolled +  and plicate +
smooth-angled +  and trigonous +
5 cm50 mm <br />0.05 m <br /> (15 cm150 mm <br />0.15 m <br />) +
0.8mm;2.2mm +
Colo. +  and Utah. +
3600–4000 m +
veinless sessile +  and stipitate +
planoconvex;ovate;narrowly ovate +
open +, pistillate +  and staminate +
hypogynous +  and subtending +
biconvex +  and trigonous +
Dry alpine tundra, especially scree slopes, uncommon and local +
globose +  and ovoid +
globose +  and ovoid-globose +
1 cm10 mm <br />0.01 m <br /> (1.8 cm18 mm <br />0.018 m <br />) +
sessile +  and condensed +
multi-ranked +, 2-ranked +, 3-ranked +  and alternate +
basal +  and cauline +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (0.16 cm1.6 mm <br />0.0016 m <br />) +
whitish hyaline +
with (1-)3-6(-30) bristles and/or scales +
veinless +, veined +  and 5-9-veined +
0.36 cm3.6 mm <br />0.0036 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
erect +  and spreading +
0.19 cm1.9 mm <br />0.0019 m <br /> (0.26 cm2.6 mm <br />0.0026 m <br />) +
Fruiting Jul–Sep. +
2-3(-4)-carpellate +
3 (?) +  and 1 (?) +
awned +  and acute +
Bull. Torrey Bot. Club +
adventitious +
reddish-brown +  and dark-brown +
basal +  and proximal +
cylindric +
Illustrated +  and Endemic +
indistinguishable +
1 (?) +  and 3 (?) +
septate +, hollow +  and solid +
compressed +, terete +  and trigonous +
papillate +
0 cm0 mm <br />0 m <br /> (?) +  and 0.02 cm0.2 mm <br />2.0e-4 m <br /> (?) +
deciduous +
2-3(-4)-fid +
Carex perglobosa +
Carex sect. Foetidae +
species +
plant +  and cespitose +