familyPotamogetonaceae
genusStuckenia
speciesStuckenia vaginata

Stuckenia vaginata

(Turczaninow) Holub

Folia Geobot. Phytotax. 19: 215. 1984.

Robert R. Haynes, C. Barre Hellquist
Common names: Bigsheath-pondweed potamot engainé
Basionym: Potamogeton vaginatus Turczaninow Bull. Soc. Imp. Naturalistes Moscou 27(2): 66–67. 1854
Treatment appears in FNA Volume 22.
Revision as of 23:55, 29 July 2020 by imported>Volume Importer
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Stems freely branching proximally to distally, terete, 20–50 (–70) cm. Leaves: length and width of those on main-stem only slightly larger than those on branches; stipules with stipular sheaths inflated 3–5 times stem thickness, 2–9 cm, ligule absent, obscure, or to 0.2 mm; blade narrowly filiform to linear, 1–10 (–15) cm × 0.2–2.9 mm, apex rounded, obtuse, or slightly notched; veins 1 (–3). Inflorescences: peduncles terminal, erect, slender, 3–15 cm; spikes moniliform, 10–80 mm; verticels 3–12. Fruits brown, obliquely obovoid, 3–3.8 mm × 2–2.9 mm; beak inconspicuous. 2n = 78.


Phenology: Flowering late summer–fall.
Habitat: Deep lakes and ponds
Elevation: 0–2300 m

Distribution

V22 374-distribution-map.jpg

Alta., B.C., Man., N.W.T., Nunavut, Ont., Que., Sask., Yukon, Alaska, Colo., Idaho, Minn., Mont., N.Dak., Oreg., S.Dak., Utah, Wash., Wis., Wyo., Eurasia

Discussion

One hybrid, P. pectinatus × P. vaginatus (= P. × bottnicus Hagström), with this species as a putative parent has been described under the genus Potamogeton.

Selected References

Correll, D. S. and M. C. Johnston. 1970. Manual of the Vascular Plants of Texas. Renner, Tex.

Harada, I. 1956. Cytological studies in Helobiae. I. Chromosome idiograms and a list of chromosome numbers in several families. Cytologia 21: 306--328.

Hellquist, C. B., C. T. Philbrick, and R. L. Hilton. 1988. The taxonomic status of Potamogeton lateralis Morong (Potamogetonaceae). Rhodora. 90: 15--20.

Hindákov&aacute, M. and T. Schwarzová. 1980. Pp. 728--730. In: Á. Löve. IOPB Cchromosome number reports LXIX. Taxon 29: 703--730.

Jøörgensen, C. A., T. H. Søörensen, and M. Westergaard. 1958. The flowering plants of Greenland. A taxonomical and cytological survey. Kongel. Danske Vidensk.-Selsk.Biol. Skr. 9(4): 1--172.

Löve, Á. 1954. Cytotaxonomical evaluation of corresponding taxa. Vegetatio 5--6: 212--224.

Löve, Á. and D. Löve. 1981. Pp. 699--701. In: Á. Löve. IOPB Cchromosome number reports LXXII. Taxon 30: 694--708.

Moore, E. 1913. The potamogetons in relation to pond culture. Bull. U.S. Bur. Fish. 33: 251--291.

Palmgren, O. 1939. Cytological studies in Potamogeton. Bot. Not. 1939: 246--248.

Preston, C. D. 1995. Pondweeds of Great Britain and Ireland. London.

Stern, K. R. 1961b. Chromosome numbers in nine taxa of Potamogeton. Bull. Torrey Bot. Club 88: 411--414.

Taylor, R. L. and G. A. Mulligan. 1968. Flora of the Queen Charlotte Islands. Part. 2. Cytological Aspects of the Vascular Plants. Ottawa.

Lower Taxa

None.

"not elongating" is not a number.

... more about "Stuckenia vaginata"
RDF feed
2n chromosome quantity
78 +
Adnation position relational
past +
Anther dehiscence
dehiscing +
Anther fusion
distinct +
Apex shape
notched +, obtuse +  and rounded +
Author
Robert R. Haynes +  and C. Barre Hellquist +
Authority
(Turczaninow) Holub +
Base shape
acute +
Basionyms
Potamogeton vaginatus +
Beak prominence
inconspicuous +
Blade atypical length
10 cm100 mm <br />0.1 m <br /> (15 cm150 mm <br />0.15 m <br />) +
Blade length
1 cm10 mm <br />0.01 m <br /> (10 cm100 mm <br />0.1 m <br />) +
Blade shape
narrowly filiform;linear +
Blade width
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.29 cm2.9 mm <br />0.0029 m <br />) +
Coil architecture
full +
Coil quantity
0 (1) +
Common name
Bigsheath-pondweed +  and potamot engainé +
Distribution
Alta. +, B.C. +, Man. +, N.W.T. +, Nunavut +, Ont. +, Que. +, Sask. +, Yukon +, Alaska +, Colo. +, Idaho +, Minn. +, Mont. +, N.Dak. +, Oreg. +, S.Dak. +, Utah +, Wash. +, Wis. +, Wyo. +  and Eurasia +
Elevation
0–2300 m +
Embryo course
curved +
Flower presence
absent +
Flower reproduction
bisexual +
Fruit architecture
drupaceous +
Fruit architecture or shape
not +  and beaked +
Fruit coloration
brown +
Fruit length
0.3 cm3 mm <br />0.003 m <br /> (0.38 cm3.8 mm <br />0.0038 m <br />) +
Fruit shape
obovoid +
Fruit width
0.2 cm2 mm <br />0.002 m <br /> (0.29 cm2.9 mm <br />0.0029 m <br />) +
Habitat
Deep lakes and ponds +
Illustration copyright
Flora of North America Association +
Illustrator
John Myers +
Inflorescence orientation
not projecting +
Inflorescence position
axillary +  and terminal +
Inflorescences spike location
submersed +
Inflorescences spike shape
cylindric +  and capitate +
Leaf architecture
sessile +
Leaf arrangement
alternate +
Leaf arrangement or course or shape
linear +
Leaf coloration
opaque +
Leaf growth form or location
floating +
Leaf location
submersed +
Leaf shape
acute +, turgid +  and channeled +
Ligule fusion
free +
Ligule presence
absent +
Ligule prominence
obscure +
Ligule some measurement
0 cm0 mm <br />0 m <br /> (?) +  and 0.02 cm0.2 mm <br />2.0e-4 m <br /> (?) +
Margin architecture or shape
entire +
Number of lower taxa
0 +
Ovule orientation
orthotropous +
Ovule position
marginal +
Panicle architecture
not pedunculate +
Peduncle arrangement
not spiraling +
Peduncle fragility
pliable +
Peduncle orientation
erect +
Peduncle position or structure subtype
terminal +
Peduncle size
slender +
Peduncle some measurement
3 cm30 mm <br />0.03 m <br /> (15 cm150 mm <br />0.15 m <br />) +
Phenology
Flowering late summer–fall. +
Pistil architecture
short-stipitate +  and stipitate +
Pistil quantity
4 +
Pollen shape
spheric +
Publication title
Folia Geobot. Phytotax. +
Publication year
1984 +
Reference
correll1970a +, harada1956a +, hellquist1988a +, hind1980a +, j1958b +, l1954a +, l1981b +, moore1913b +, palmgren1939a +, preston1995a +, stern1961b +  and taylor1968a +
Rhizome presence
absent +
Scar architecture
ligulate +
Scar arrangement or shape
circular +
Scar shape
auriculate +  and not auriculate +
Seed quantity
1 +
Series quantity
1 +
Sheath duration
not persisting +
Sheath length or size
longer +
Sheath shape
inflated +
Source xml
https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/62857cf6bca5c4637d27b113da92d27dbf9962f4/V22/V22 374.xml +
Spike architecture or shape
capitate +
Spike shape
moniliform +
Spike some measurement
1 cm10 mm <br />0.01 m <br /> (8 cm80 mm <br />0.08 m <br />) +
Stamen position
epitepalous +
Stamen quantity
4 +
Stem architecture
branching +
Stem atypical some measurement
50 cm500 mm <br />0.5 m <br /> (70 cm700 mm <br />0.7 m <br />) +
Stem shape
terete +
Stem some measurement
20 cm200 mm <br />0.2 m <br /> (50 cm500 mm <br />0.5 m <br />) +
Stipular shape
inflated +
Stipule fusion
adnate +
Stipule quantity
2/3 +
Stipule shape
not tubular +
Stipule size or quantity
3-5 times stem +
Stipule some measurement
2 cm20 mm <br />0.02 m <br /> (9 cm90 mm <br />0.09 m <br />) +
Synonyms
Coleogeton +
Taxon family
Potamogetonaceae +
Taxon name
Stuckenia vaginata +
Taxon parent
Stuckenia +
Taxon rank
species +
Tepal quantity
4 +
Tuber presence
absent +
Turion presence
absent +
Vein atypical quantity
1 (3) +
Vein quantity
1 (?) +
Verticel quantity
3 (12) +
Volume
Volume 22 +
Whole organism architecture
caulescent +, not rhizomatous +  and rhizomatous +
Whole organism duration
annual +  and perennial +
Whole organism growth form
herb +
X chromosome quantity
13 +