Carex lenticularis var. dolia

(M. E. Jones) L. A. Standley

Syst. Bot. Monogr. 7: 62. 1985.

IllustratedEndemic
Basionym: Carex goodenovii var. dolia M. E. Jones Bull. Montana State Univ., Biol. Ser. 15: 72. 1910
Synonyms: Carex enanderi Hultén Carex eurystachya F. J. Hermann Carex plectocarpa F. J. Hermann
Treatment appears in FNA Volume 23. Treatment on page 392. Mentioned on page 389, 391.

Culms 3–35 cm. Leaf-blades 1.5–2.5 mm wide. Inflorescences: peduncle of proximal spike less than 1 cm; proximal bract redbrown at base, 1–2 mm wide. Spikes: proximal 3–4 spikes pistillate, 0.9–1.5 cm × 2–4 mm; terminal spike gynecandrous. Pistillate scales redbrown or black. Perigynia 5–7-veined on each face, ovoid, 1.8–2.5 × 1.2–1.5 mm; stipe to 0.5 mm; beak redbrown, 0.2 mm.


Phenology: Fruiting Aug–Sep.
Habitat: Gravelly soils on seasonally flooded stream and lakeshores or seeps
Elevation: 1500–3000 m

Distribution

V23 696-distribution-map.jpg

Alta., B.C., Yukon, Alaska, Mont.

Discussion

Carex lenticularis var. dolia is an infrequent taxon of high elevations in the northern Rocky Mountains and can be separated from var. lipocarpa by the lax habit, the compact inflorescence, the gynecandrous terminal spike, and the ovoid perigynia. It appears to hybridize with var. lipocarpa in Montana. Carex eleusinoides is similar in inflorescence morphology, but may be distinguished by its red basal sheaths and short, veinless perigynia. The eastern C. rufina is also very similar in inflorescence morphology; it differs in the short, subsessile, ellipsoid perigynia.

Selected References

None.

Lower Taxa

None.

"prolonged" is not a number.

biconvex +
not constricted +
, +  and papillose +
Lisa A. Standley +, Jacques Cayouette +  and Leo Bruederle +
(M. E. Jones) L. A. Standley +
shortened +
not +  and fibrous +
distended +, attenuate +  and cuneate +
Carex goodenovii var. dolia +
bidentate +  and emarginate +
0.2 cm2 mm <br />0.002 m <br /> (?) +
papillose +
m--shaped +  and v--shaped +
0mm;20mm +
glumaceous +  and foliaceous +
2-ranked +  and arranged +
ascending +  and appressed +
scale-like +  and leaflike +
parallel +  and divergent +
terete +, rolled +  and plicate +
redbrown +  and brown +
3 cm30 mm <br />0.03 m <br /> (35 cm350 mm <br />0.35 m <br />) +
prophyllate +, subsessile +, pedunculate +  and staminate +
Alta. +, B.C. +, Yukon +, Alaska +  and Mont. +
1500–3000 m +
open +, pistillate +  and staminate +
hypogynous +  and subtending +
biconvex +  and trigonous +
Gravelly soils on seasonally flooded stream and lakeshores or seeps +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
multi-ranked +, 2-ranked +, 3-ranked +  and alternate +
basal +  and cauline +
0 cm0 mm <br />0 m <br /> (1 cm10 mm <br />0.01 m <br />) +
with (1-)3-6(-30) bristles and/or scales +
0.18 cm1.8 mm <br />0.0018 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
0.12 cm1.2 mm <br />0.0012 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
Fruiting Aug–Sep. +
2-3(-4)-carpellate +
3 (?) +  and 1 (?) +
short-sheathing +, sheathless +  and leaflike +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
Syst. Bot. Monogr. +
adventitious +
black +  and redbrown +
basal +  and proximal +
2-keeled +
ladder-fibrillose +  and veined +
cylindric +
Illustrated +  and Endemic +
0.9 cm9 mm <br />0.009 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
1 (?) +  and 3 (?) +
septate +, hollow +  and solid +
compressed +, terete +  and trigonous +
papillate +
0 cm0 mm <br />0 m <br /> (?) +  and 0.05 cm0.5 mm <br />5.0e-4 m <br /> (?) +
deciduous +
2-3(-4)-fid +
Carex enanderi +, Carex eurystachya +  and Carex plectocarpa +
Carex lenticularis var. dolia +
Carex lenticularis +
variety +
, +  and staminate +
plant +  and cespitose +