Cyperus lupulinus subsp. macilentus

(Sprengel) Marcks

Trans. Wisconsin Acad. Sci. 62: 275. 1974.

IllustratedEndemic
Basionym: Cyperus filiculmis var. macilentus Fernald Rhodora 8: 128. 1906
Synonyms: Cyperus macilentus (Fernald) E. P. Bicknell
Treatment appears in FNA Volume 23. Treatment on page 177. Mentioned on page 176.

Culms (3–) 10–30 (–40) cm × 0.4–0.8 mm. Leaves 5–20 cm × 0.8–2.7 mm. Inflorescences: spikes densely ovoid, 8–16 mm; rays 0 or 1–3, 1–4 cm; bracts 2–4, 4–15 cm. Spikelets 20–60, 3–7 × 2.5–3.5 mm; floral scales 3–7, 1.8–2.5 × 1.4–1.8 mm, margins clasping achene, apex mucronate, mucro 0.05–0.2 mm. Achenes 1.4–1.8 × 0.6–0.9 mm.


Phenology: Fruiting summer
Habitat: Various well-drained, open places
Elevation: 0–1000 m

Distribution

V23 297-distribution-map.jpg

N.B., N.S., Ont., Que., Conn., Del., D.C., Ga., Ill., Ind., Iowa, Maine, Md., Mass., Mich., Minn., Nebr., N.H., N.J., N.Y., N.C., Ohio, Pa., R.I., Vt., Va., W.Va., Wis.

Discussion

Selected References

None.

Lower Taxa

None.

"shortened" is not a number.

black +  and dark-brown +
0.14 cm1.4 mm <br />0.0014 m <br /> (0.18 cm1.8 mm <br />0.0018 m <br />) +
ellipsoid +
0.6mm;0.9mm +
0.03 cm0.3 mm <br />3.0e-4 m <br /> (0.06 cm0.6 mm <br />6.0e-4 m <br />) +
mucronate +
Gordon C. Tucker* +, Brian G. Marcks* +  and J. Richard Carter * +
(Sprengel) Marcks +
persistent +  and deciduous +
decurrent +
Cyperus filiculmis var. macilentus +
w--shaped +  and keeled +
glumaceous +  and foliaceous +
2-ranked +  and arranged +
horizontal +  and reflexed +
4 cm40 mm <br />0.04 m <br /> (15 cm150 mm <br />0.15 m <br />) +
parallel +  and divergent +
terete +, rolled +  and plicate +
30 cm300 mm <br />0.3 m <br /> (40 cm400 mm <br />0.4 m <br />) +
10 cm100 mm <br />0.1 m <br /> (30 cm300 mm <br />0.3 m <br />) +
scabridulous +
trigonous +
0.4mm;0.8mm +
N.B. +, N.S. +, Ont. +, Que. +, Conn. +, Del. +, D.C. +, Ga. +, Ill. +, Ind. +, Iowa +, Maine +, Md. +, Mass. +, Mich. +, Minn. +, Nebr. +, N.H. +, N.J. +, N.Y. +, N.C. +, Ohio +, Pa. +, R.I. +, Vt. +, Va. +, W.Va. +  and Wis. +
0–1000 m +
off-white +  and light reddish-brown +
0.18 cm1.8 mm <br />0.0018 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
ovate-elliptic +
0.14 cm1.4 mm <br />0.0014 m <br /> (0.18 cm1.8 mm <br />0.0018 m <br />) +
hypogynous +  and subtending +
biconvex +  and trigonous +
Various well-drained, open places +
subumbellate +  and capitate +
spreading +  and erect +
multi-ranked +, 2-ranked +, 3-ranked +  and alternate +
5 cm50 mm <br />0.05 m <br /> (?) +  and 20 cm200 mm <br />0.2 m <br /> (?) +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.27 cm2.7 mm <br />0.0027 m <br />) +
0.005 cm0.05 mm <br />5.0e-5 m <br /> (0.02 cm0.2 mm <br />2.0e-4 m <br />) +
with (1-)3-6(-30) bristles and/or scales +
Fruiting summer +
2-3(-4)-carpellate +
antrorse +  and extrorse +
3 (?) +  and 1 (?) +
Trans. Wisconsin Acad. Sci. +
conspicuous +
unequal +
1 +  and 3 +
1 cm10 mm <br />0.01 m <br /> (4 cm40 mm <br />0.04 m <br />) +
beaded +  and knotted +
adventitious +
basal +  and proximal +
cylindric;compressed +
cylindric +
Illustrated +  and Endemic +
0.8 cm8 mm <br />0.008 m <br /> (1.6 cm16 mm <br />0.016 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
20 +  and 60 +
oblong-lanceoloid;compressed +
2.5mm;3.5mm +
septate +, hollow +  and solid +
compressed +, terete +  and trigonous +
papillate +
0.1 cm1 mm <br />0.001 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
2-3-fid +
1 cm10 mm <br />0.01 m <br /> (?) +
Cyperus macilentus +
Cyperus lupulinus subsp. macilentus +
Cyperus lupulinus +
subspecies +
tuberous +, stoloniferous +  and rhizomatous +
herb +  and cespitose +