| species information (Systematics, BiolFlor-Names, Status) |
| BiolFlor-Name |
family |
german name(s) |
| Spirodela polyrhiza (L.) Schleid. |
Lemnaceae » |
Vielwurzelige Teichlinse
|
| reference |
|
Kühn, I., Klotz, S. 2002: Systematik, Taxonomie und Nomenklatur. In: Klotz, S., Kühn, I., Durka, W. (Hrsg.): BIOLFLOR - Eine Datenbank mit biologisch-ökologischen Merkmalen zur Flora von Deutschland. Schriftenreihe für Vegetationskunde. Bonn »
|
|
| Synonymy (taxonomy after Wisskirchen & Haeupler, 1998) |
| Spirodela polyrhiza (L.) Schleid. |
accepted |
| Lemna polyrhiza L. |
Basionym |
|
| Chromosome number » |
| Basic chromosome number |
10 |
| Chromosome number 2n |
40 |
| Chromosome number (Germany) |
True |
| Most common chromosome race |
False |
| Ploidy level |
4 (tetraploid) |
| Ploidy type |
P (polyploid with haploid basic number) |
| Reference |
Oberdorfer, E. 1983: Pflanzensoziologische Exkursionsflora. Ulmer, Stuttgart |
|
| DNA content » |
| DNA content (pg/2C) |
0.6 |
| Chromosome number |
80 |
| Quality |
chromosome number known and occurring in Germany [b] |
| Authorised in BENNET & LEITCH 2001 |
False |
| Reference |
Greilhuber, J. 1995: Chromosomes of the monocotyledons (general aspects). In: Rudall, P.J., Cribb, P.J., Cutler, D.F., Humphries, C.J. (Hrsg.) Monocotyledons: systematics and evolution, S. 379-414, Royal Botanic Garden, Kew |
|
| Life form » |
| Life form |
A (Hydrophyte) |
| Qualifier |
always [1] |
| Life span » |
| Life span |
p (pluriennial-pollakanthic) |
| Qualifier |
always [1] |
| Vegetative propagation » |
| Vegetative propagation |
a (Runner) |
| Qualifier |
always [1] |
| Vegetative propagation |
t (Turio) |
| Qualifier |
always [1] |
| Storage organs » |
| Storage organs |
t (Turio) |
| Qualifier |
always [1] |
| Shoot metamorphoses » |
| Shoot metamorphoses |
a (Runner) |
| Qualifier |
always [1] |
| Shoot metamorphoses |
t (Turio) |
| Qualifier |
always [1] |
| Rosettes » |
| Rosettes |
r (Erosulate plant) |
| Qualifier |
always [1] |
| special references:
|
| Lemon, G.D., Posluszny, U., Husband, B.C. 2001: Potential and realized rates of vegetative reproduction in Spirodela polyrhiza, Lemna minor, and Wolffia borealis. Aquatic Botany 70:79-87
|
| Henssen, A. 1954: Die Dauerorgane von Spirodela polyrrhiza (L.) in physiologischer Betrachtung. Flora 141:523-566
|
| Barrat-Segretain, M.H. 1996: Strategies of reproduction, dispersion, and competition of river plants: A review. Vegetatio 123:13-27
|
| Goebel, K. 1921: Zur Organographie der Lemnaceen. Flora 114:278-305
|
| Newton, R.J., Shelton, D.R., Disharoon, S., Duffey, J.E. 1978: Turion formation and germination in Spirodela polyrhiza. American Journal of Botany 65:421-428
|
| Winston, R.D., Gorham, P.R. 1979: Turions and dormancy states in Utricularia vulgaris. Canadian Journal of Botany 57:2740-2749
|
| Sastroutomo, S.S. 1980: Environmental control of turion formation in curly pondweed (Potamogeton crispus). Physiol. Plant. 49:261-264
|
| Bartley, M.R., Spence, D.H.N. 1987: Dormancy and propagation in heleophytes and hydrophytes. Arch. Hydrobiol. Ergebn. Limnol. 27:139-155
|
| Jacobs, D.L. 1947: An ecological life history of Spirodela polyrrhiza (greater Duckweed) with emphasis on the turion phase. Ecological Monographs 17:437-467
|
| Landolt, E. 1987: Eco-geographical differentiation in some aquatic plants: the Lemnaceae. In: Urbanska, K. (Hrsg.) Vegetation patterns in Higher Plants, S. 201-215, Academic Press, London
|
|
| Flowering phenology » |
| Begin of flowering (months) |
5 |
| End of flowering (months) |
6 |
| Duration of flowering (months) |
2 |
| Number of flowering phases |
0 |
| Symphenological Groups » |
| Phenological group |
0 (not available)
Phenological season: not available |
| Reference |
Dierschke, H 1995: Phänologische und symphänologische Artengruppen von Blütenpflanzen in Mitteleuropa. Tuexenia 15: 523-560 |
|
| Type of reproduction » |
| Type of reproduction |
v (vegetatively) |
| Reference |
Jäger, E.J., Werner, K. (Hrsg.) 2002: Rothmaler. Exkursionsflora von Deutschland. Gefäßpflanzen: Kritischer Band. 9. Aufl., Spektrum Akademischer Verlag, Heidelberg |
| Type of seed production » |
| Type of seed production |
s (amphimictic, sexual) |
| Reference |
Knuth, P. 1898: Handbuch der Blütenbiologie. Leipzig |
| Dicliny » |
| Dicliny |
mo (monoecious) |
| Abundance |
always [1] |
| Reference |
Jäger, E.J., Werner, K. (Hrsg.) 2002: Rothmaler. Exkursionsflora von Deutschland. Gefäßpflanzen: Kritischer Band. 9. Aufl., Spektrum Akademischer Verlag, Heidelberg |
| Dichogamy » |
| Dichogamy |
a2 (protandrous) |
| Reference |
Knuth, P. 1898: Handbuch der Blütenbiologie. Leipzig |
| Self-sterility and self-incompatibility » |
| Self-sterility and self-incompatibility |
SC (self-compatibel) |
| Reference |
East, E.M. 1940: The distribution of self-sterility in the flowering plants. Proceedings of the American Philosophical Society 82:449-518 |
| Systematic reference |
genus [G] |
| Pollen vector » |
| Pollen vector |
wi (wind)
Pollen vector group: ab (abiotische Bestäubung) |
| Abundance |
possible [5] |
| Reference |
Knuth, P. 1898: Handbuch der Blütenbiologie. Leipzig |
| Systematic reference |
species [S] |
| Pollen vector |
wa (water)
Pollen vector group: ab (abiotische Bestäubung) |
| Abundance |
possible [5] |
| Reference |
Knuth, P. 1898: Handbuch der Blütenbiologie. Leipzig |
| Systematic reference |
species [S] |
| Pollen vector |
se (selfing)
Pollen vector group: se (Selbstbestäubung) |
| Abundance |
possible [5] |
| Reference |
Knuth, P. 1898: Handbuch der Blütenbiologie. Leipzig |
| Systematic reference |
species [S] |
| Pollen vector |
in (insects)
Pollen vector group: zo (Tierbestäubung) |
| Abundance |
possible [5] |
| Reference |
Knuth, P. 1898: Handbuch der Blütenbiologie. Leipzig |
| Systematic reference |
species [S] |
| Pollen vector |
sn (slug)
Pollen vector group: zo (Tierbestäubung) |
| Abundance |
possible [5] |
| Reference |
Knuth, P. 1898: Handbuch der Blütenbiologie. Leipzig |
| Systematic reference |
species [S] |
| Breeding system » |
| Breeding system |
AF (facultative autogamous) |
| Reference |
Holm, L., Doll, J., Holm, E., Pancho, J., Herberger, J. 1997: World Weeds. John Wiley & Sons, New York |
| Flower class after MUELLER » |
| Flower class after MUELLER |
W (wind flowers)
Typical pollinators: - |
| Flower type after KUGLER » |
| Flower type after KUGLER |
0 (not applicable) |
|
| Habitat » |
| Habitat |
L3.2 (null)
Alliance: ???
|
| Occurrence questionable |
False |
| Occurence restricted |
False |
| Annotation |
|
|
| Class » |
| English circumscription |
01.1 (Communities of floating aquatic plants)
Class: Lemnetea minoris
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Display of complete information for the selected species. Only traits available for the selected species are displayed.
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