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Overview of all traits of a species

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
 
group of traits: Status »
Floristic status »
Floristic status I (indigenous)
Evolutionary origin »
Evolutionary origin n (naturally)
Region of origin »
Region of origin 0 (not specified)
Endemism »
Endemism 0 (not specified)
Reference unbekannt
 
group of traits: Chromosome number »
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
 
group of traits: DNA content »
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
 
group of traits: Phylogeny »
Phylogeny code »
Phylogeny code BBBBBABBABAA
 
group of traits: Morphology »
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
 
group of traits: Leaf traits »
Leaf anatomy »
Leaf anatomy a (hydromorphic)
Leaf form »
Leaf form voll (full)
 
group of traits: Flowering phenology »
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
 
group of traits: Floral and reproductive biology »
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)
 
group of traits: Seed traits »
Fruit type »
Fruit type v (vegetative)
Diaspore type »
Diaspore type v (vegetative)
Germinule type »
Heteromorphic type n (not heteromorphic)
Germinule type v (vegetative)
Information available False
Development of nutritious appendages  
Development of flat appendages  
Development of elongated appendages  
Development of additional appendages  
 
group of traits: Ecological strategy »
Strategy type »
Strategy type  
 
group of traits: Range »
Floristic zone and altitudinal level »
Floristic zone u (austral and/or antarctic)
Altitudinal level  
Status natural range
Floristic zone r (tropical)
Altitudinal level  
Status natural range
Floristic zone o (subtropical)
Altitudinal level  
Status natural range
Floristic zone m (meridional)
Altitudinal level  
Status natural range
Floristic zone e (submeridional)
Altitudinal level  
Status natural range
Floristic zone p (southern temperate)
Altitudinal level  
Status natural range
Floristic zone n (northern temperate)
Altitudinal level  
Status natural range
Number of inhabited floristic zones »
Number of inhabited floristic zones 6
Oceanity »
Oceanity sos (weak suboceanic)
Amplitude of Oceanity: 4
Minimum level of oceantity: extreme central continental climate
Maximum level of oceantity: extreme oceanic climate
Status natural range
Floristic region »
Floristic region c (circumpolar)
Continent of floristic region: c (circumpolar)
Status natural range
Floristic region f (Africa)
Continent of floristic region: f (Afrika)
Status natural range
Floristic region u (Australia/New Zealand)
Continent of floristic region: u (Australien/Neuseeland)
Status natural range
 
group of traits: Hemeroby »
Number of hemerobic levels »
Number of hemerobic levels 0
 
group of traits: Urbanity »
Urbanity »
Urbanity  
 
group of traits: Habitats »
Habitat »
Habitat L3.2 (null)
Alliance: ???
Occurrence questionable False
Occurence restricted False
Annotation  
 
group of traits: Sociology »
Class »
English circumscription 01.1 (Communities of floating aquatic plants)
Class: Lemnetea minoris
 
 
groups of traits for this species
Status »
Chromosome number »
DNA content »
Phylogeny »
Morphology »
Leaf traits »
Flowering phenology »
Floral and reproductive biology »
Seed traits »
Ecological strategy »
Range »
Hemeroby »
Urbanity »
Habitats »
Sociology »


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