familyCyperaceae
genusCyperus
subgenusCyperus subg. Cyperus
speciesCyperus lupulinus
subspeciesCyperus lupulinus subsp. macilentus

Cyperus lupulinus subsp. macilentus

(Sprengel) Marcks

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

Gordon C. Tucker*, Brian G. Marcks*, J. Richard Carter *
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.

... more about "Cyperus lupulinus subsp. macilentus"
RDF feed
2n chromosome quantity
166 +
Achene architecture
sessile +
Achene architecture or fixation
clasping +
Achene coloration
black +  and dark-brown +
Achene length
0.14 cm1.4 mm <br />0.0014 m <br /> (0.18 cm1.8 mm <br />0.0018 m <br />) +
Achene life cycle
mature +
Achene shape
ellipsoid +
Achene width
0.6mm;0.9mm +
Anther fixation
basifixed +
Anther some measurement
0.03 cm0.3 mm <br />3.0e-4 m <br /> (0.06 cm0.6 mm <br />6.0e-4 m <br />) +
Apex architecture or shape
apiculate +
Apex shape
mucronate +
Author
Gordon C. Tucker* +, Brian G. Marcks* +  and J. Richard Carter * +
Authority
(Sprengel) Marcks +
Base architecture
cormose +
Base duration
persistent +  and deciduous +
Base shape
decurrent +
Basionyms
Cyperus filiculmis var. macilentus +
Blade presence
absent +
Blade prominence or shape
flat +
Blade shape
w--shaped +  and keeled +
Bract architecture
glumaceous +  and foliaceous +
Bract arrangement
2-ranked +  and arranged +
Bract orientation
horizontal +  and reflexed +
Bract prominence or shape
flat +
Bract quantity
2;4 +
Bract some measurement
4 cm40 mm <br />0.04 m <br /> (15 cm150 mm <br />0.15 m <br />) +
Branch atypical quantity
3 (4) +
Branch quantity
2;3 +
Bristle atypical quantity
6;30 +
Bristle quantity
3;6 +
Cauline leaf architecture or shape
folded +
Cauline leaf arrangement
parallel +  and divergent +
Cauline leaf arrangement or course or shape
linear +
Cauline leaf orientation
Ascending (?) +
Cauline leaf prominence or shape
flat +
Cauline leaf shape
terete +, rolled +  and plicate +
Culm architecture or arrangement or growth form
not +  and solitary +
Culm atypical length
30 cm300 mm <br />0.3 m <br /> (40 cm400 mm <br />0.4 m <br />) +
Culm length
10 cm100 mm <br />0.1 m <br /> (30 cm300 mm <br />0.3 m <br />) +
Culm pubescence
glabrous +
Culm relief
scabridulous +
Culm shape
trigonous +
Culm width
0.4mm;0.8mm +
Distal scale architecture
empty +
Distribution
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. +
Elevation
0–1000 m +
Embryo position
basal +
Endosperm quantity
abundant +
Floral scale architecture or shape
3-5-ribbed +
Floral scale arrangement
distichous +
Floral scale coloration
off-white +  and light reddish-brown +
Floral scale duration
deciduous +
Floral scale length
0.18 cm1.8 mm <br />0.0018 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
Floral scale quantity
3 (7) +
Floral scale shape
ovate-elliptic +
Floral scale width
0.14 cm1.4 mm <br />0.0014 m <br /> (0.18 cm1.8 mm <br />0.0018 m <br />) +
Flower position
hypogynous +  and subtending +
Flower quantity
single +
Flower reproduction
bisexual +
Fruits achene shape
biconvex +  and trigonous +
Habitat
Various well-drained, open places +
Illustration copyright
Flora of North America Association +
Illustrator
Yevonn Wilson-Ramsey +
Inflorescence architecture
subumbellate +  and capitate +
Inflorescence position
pseudolateral +
Inflorescence position or structure subtype
terminal +
Inflorescences panicle architecture
pseudoumbel +
Inflorescences panicle development
modified +
Involucral-bract architecture or shape
leaflike +
Involucral-bract arrangement
arranged +
Involucral-bract orientation
spreading +  and erect +
Involucral-bract quantity
1;22 +
Leaf arrangement
multi-ranked +, 2-ranked +, 3-ranked +  and alternate +
Leaf length
5 cm50 mm <br />0.05 m <br /> (?) +  and 20 cm200 mm <br />0.2 m <br /> (?) +
Leaf position
basal +
Leaf prominence or shape
flat +
Leaf width
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.27 cm2.7 mm <br />0.0027 m <br />) +
Ligule presence
absent +
Locule quantity
1 +
Margin fusion
fused +
Margin orientation
spreading +
Mucro some measurement
0.005 cm0.05 mm <br />5.0e-5 m <br /> (0.02 cm0.2 mm <br />2.0e-4 m <br />) +
Number of lower taxa
0 +
Perianth life cycle
falling +
Perianth presence
absent +
Perianth quantity
with (1-)3-6(-30) bristles and/or scales +
Pericarp width
thin +
Phenology
Fruiting summer +
Pistil architecture
2-3(-4)-carpellate +
Pistil fusion
fused +
Pistil quantity
1 +
Prickle orientation
antrorse +  and extrorse +
Prophyll architecture
pistillate +
Prophyll atypical quantity
0 (3) +
Prophyll position
subtending +
Prophyll quantity
3 (?) +  and 1 (?) +
Publication title
Trans. Wisconsin Acad. Sci. +
Publication year
1974 +
Rachillum architecture
wingless +
Rachillum duration
deciduous +
Rachillum life cycle
falling +
Rachis prominence
conspicuous +
Rachis some measurement
1mm;3.5mm +
Ray arrangement
singly +
Ray length
unequal +
Ray presence
absent +
Ray quantity
1 +  and 3 +
Ray some measurement
1 cm10 mm <br />0.01 m <br /> (4 cm40 mm <br />0.04 m <br />) +
Reference
None +
Rhizome shape
beaded +  and knotted +
Root derivation
adventitious +
Root texture
fibrous +
Scale architecture
empty +
Scale arrangement
distichous +
Scale atypical quantity
6 (30) +
Scale position
basal +  and proximal +
Scale quantity
0;76 +
Scale reproduction
fertile +
Scale shape
cylindric;compressed +
Seed quantity
1 +
Sheath shape
cylindric +
Source xml
https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V23/V23 297.xml +
Special status
Illustrated +  and Endemic +
Spike architecture or fragility
loose +
Spike density
dense +
Spike quantity
single +
Spike shape
ovoid +
Spike some measurement
0.8 cm8 mm <br />0.008 m <br /> (1.6 cm16 mm <br />0.016 m <br />) +
Spikelet architecture
spicate +
Spikelet architecture or arrangement or growth form
solitary +
Spikelet arrangement
arranged +
Spikelet atypical length
0.3 cm3 mm <br />0.003 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
Spikelet length
0.3 cm3 mm <br />0.003 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
Spikelet life cycle
falling +
Spikelet quantity
20 +  and 60 +
Spikelet shape
oblong-lanceoloid;compressed +
Spikelet width
2.5mm;3.5mm +
Stamen atypical quantity
1 (3) +
Stamen fusion
distinct +
Stamen quantity
3 +
Stem architecture
septate +, hollow +  and solid +
Stem shape
compressed +, terete +  and trigonous +
Stigma quantity
3 +
Stigma relief
papillate +
Stigma some measurement
0.1 cm1 mm <br />0.001 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
Style architecture or shape
undivided +
Style arrangement or course or shape
linear +
Style shape
2-3-fid +
Style some measurement
1 cm10 mm <br />0.01 m <br /> (?) +
Surface coloration or relief
puncticulate +
Synonyms
Cyperus macilentus +
Taxon family
Cyperaceae +
Taxon name
Cyperus lupulinus subsp. macilentus +
Taxon parent
Cyperus lupulinus +
Taxon rank
subspecies +
Testa fusion
free +
Testa width
thin +
Volume
Volume 23 +
Whole organism architecture
tuberous +, stoloniferous +  and rhizomatous +
Whole organism duration
perennial +
Whole organism growth form
herb +  and cespitose +
Wing coloration
hyaline +
X chromosome quantity
5;100 +