Carex gholsonii

Naczi & Cochrane

Novon 12: 524, fig. 6. 2002.

Treatment appears in FNA Volume 23. Treatment on page 441. Mentioned on page 437, 461.

Rhizomes short or inconspicuous. Culms in tufts, 20–75 cm. Leaves green, not glaucous, cauline blades 2–26 cm × 2.2–11.3 mm, membranous. Inflorescnecs: peduncle of terminal spike 0.1–1.6 (–14) cm; bracts from shorter than to overtopping terminal spike; ligule of proximal bract 0.5–6.5 mm; longest bract blade (per plant) of distal lateral spike 1.6–4.6 (–7.1) cm. Proximal spikes usually arising from distal 1/2 of culms, 5–30 × 4.2–6.6 mm. Terminal spike overlapping and exceeding distal lateral spike, 0.9–3.4 (–4.1) cm. Pistillate scales ovate, 2–2.5 (–3.1) × 1.4–2.2 mm. Staminate scales with apex acute, occasionally obtuse. Anthers 2.3–3.1 mm. Perigynia olive to brownish green, ellipsoid, oblongellipsoid to rhombic-ellipsoid, or obliquely rhomboid, 2.8–4 × 1.3–2.1 mm, (1.6–) 1.9–3 times as long as thick; beak 0.1–0.3 (–0.5) mm, orifice nearly entire. Achenes 1.9–2.5 (–2.7) × 1.2–1.6 mm. 2n = 36.


Phenology: Fruiting late spring–early summer (late Mar–early Jun).
Habitat: Calcareous mucks and sandy loams along streams and on flood plains, swampy forests, hardwood hammocks, limestone glades, seeps, marshy ditches, grassy roadsides
Elevation: 0–30 m

Distribution

V23 809-distribution-map.jpg

Ala., Fla., Ga., N.C., S.C.

Discussion

Carex gholsonii is very similar to C. granularis (and to the Mexican and Central American C. atractodes F. J. Hermann and C. quichensis F. J. Hermann). The plants are less densely tufted than in C. granularis and produce more evident rhizomes. They have darker, green foliage, relatively short ligules and bracts, and pedunculate staminate spikes. The well-formed perigynia are broadly spindle-shaped with flattish sides and straight margins, cuneate toward the base and broadly tapered at the apex. In C. granularis, the perigynia are usually smaller, nearly or quite terete, convex-rounded toward the base, and short-tapering or rounded at the more abruptly beaked apex.

Selected References

None.

Lower Taxa

None.
... more about "Carex gholsonii"
0.25 cm2.5 mm <br />0.0025 m <br /> (0.27 cm2.7 mm <br />0.0027 m <br />) +
0.19 cm1.9 mm <br />0.0019 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
trigonous +
smaller +
1.2mm;1.6mm +
0.23 cm2.3 mm <br />0.0023 m <br /> (0.31 cm3.1 mm <br />0.0031 m <br />) +
Theodore S. Cochrane +  and Robert F. C. Naczi +
Naczi & Cochrane +
shortened +
rounded +
Granulares +
0.03 cm0.3 mm <br />3.0e-4 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
0.01 cm0.1 mm <br />1.0e-4 m <br /> (0.03 cm0.3 mm <br />3.0e-4 m <br />) +
m--shaped +
0mm;20mm +
glumaceous +  and foliaceous +
2-ranked +  and arranged +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.65 cm6.5 mm <br />0.0065 m <br />) +
ascending +  and appressed +
scale-like +  and leaflike +
2 cm20 mm <br />0.02 m <br /> (26 cm260 mm <br />0.26 m <br />) +
parallel +  and divergent +
terete +, rolled +  and plicate +
round +  and trigonous +
20 cm200 mm <br />0.2 m <br /> (75 cm750 mm <br />0.75 m <br />) +
Ala. +, Fla. +, Ga. +, N.C. +  and S.C. +
0–30 m +
open +, pistillate +  and staminate +
hypogynous +  and subtending +
biconvex +  and trigonous +
Calcareous mucks and sandy loams along streams and on flood plains, swampy forests, hardwood hammocks, limestone glades, seeps, marshy ditches, grassy roadsides +
multi-ranked +, 2-ranked +, 3-ranked +  and alternate +
basal +  and cauline +
not glaucous +
entire;minutely bidentulate +
1.6 cm16 mm <br />0.016 m <br /> (14 cm140 mm <br />0.14 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (1.6 cm16 mm <br />0.016 m <br />) +
with (1-)3-6(-30) bristles and/or scales +
olive +  and brownish green +
ascending +  and spreading +
Fruiting late spring–early summer (late Mar–early Jun). +
2-3(-4)-carpellate +
3 (?) +  and 1 (?) +
long-sheathing +  and leaflike +
short-awned +  and acuminate +
0.5 cm5 mm <br />0.005 m <br /> (3 cm30 mm <br />0.03 m <br />) +
0.42 cm4.2 mm <br />0.0042 m <br /> (0.66 cm6.6 mm <br />0.0066 m <br />) +
inconspicuous +
adventitious +
staminate +  and pistillate +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.31 cm3.1 mm <br />0.0031 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
basal +  and proximal +
obtuse;ovate +
1.4mm;2.2mm +
cylindric +
prophyllate +, pedunculate +  and staminate +
4.6 cm46 mm <br />0.046 m <br /> (7.1 cm71 mm <br />0.071 m <br />) +
1.6 cm16 mm <br />0.016 m <br /> (4.6 cm46 mm <br />0.046 m <br />) +
1 (?) +  and 3 (?) +
septate +, hollow +  and solid +
compressed +, terete +  and trigonous +
papillate +
sessile +  and veined +
rhomboid;broadly ovoid obovoid or subglobose obscurely trigonous +
deciduous +
2-3(-4)-fid +
Carex gholsonii +
Carex sect. Granulares +
species +
3.4 cm34 mm <br />0.034 m <br /> (4.1 cm41 mm <br />0.041 m <br />) +
0.9 cm9 mm <br />0.009 m <br /> (3.4 cm34 mm <br />0.034 m <br />) +
0 cm0 mm <br />0 m <br /> (0.03 cm0.3 mm <br />3.0e-4 m <br />) +
plant +, not +  and cespitose +