species information (Systematics, BiolFlor-Names, Status) |
BiolFlor-Name |
family |
german name(s) |
Dactylis polygama Horv. |
Poaceae » |
Wald-Knäuelgras
|
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 »
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Synonymy (taxonomy after Wisskirchen & Haeupler, 1998) |
Dactylis polygama Horv. |
accepted |
Dactylis glomerata var. pendula Dumort. |
Synonym |
Dactylis glomerata var. nemorosa Klett & Richt. |
Synonym |
Dactylis glomerata subsp. polygama (Horv.) Domin |
Synonym |
Dactylis aschersoniana Graebn. |
Synonym |
Dactylis glomerata subsp. aschersoniana (Graebn.) Thell. |
Synonym |
Dactylis glomerata subsp. lobata (Drejer) Lindb. f. |
Synonym |
Dactylis glomerata var. lobata Drejer |
Synonym |
Dactylis glomerata var. decalvata Döll |
Synonym |
<Dactylis glomerata L., s. l. |
Synonym |
<Dactylis glomerata agg. |
accepted |
|
Chromosome number » |
Basic chromosome number |
7 |
Chromosome number 2n |
14 |
Chromosome number (Germany) |
True |
Most common chromosome race |
False |
Ploidy level |
2 (diploid) |
Ploidy type |
D (diploid with haploid basic number) |
Reference |
Oberdorfer, E. 1983: Pflanzensoziologische Exkursionsflora. Ulmer, Stuttgart |
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Flowering phenology » |
Begin of flowering (months) |
6 |
End of flowering (months) |
7 |
Duration of flowering (months) |
2 |
Number of flowering phases |
0 |
Symphenological Groups » |
Phenological group |
7 (Ligustrum-Stachys sylvatica-Phase) Phenological season: end of early summer |
Reference |
Dierschke, H 1995: Phänologische und symphänologische Artengruppen von Blütenpflanzen in Mitteleuropa. Tuexenia 15: 523-560 |
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Type of reproduction » |
Type of reproduction |
s (by seed/by spore) |
Reference |
Krumbiegel, A. 2002: Morphologie der vegetativen Organe (außer Blätter). In: Klotz, S., Kühn, I., Durka, W. (Hrsg.) BiolFlor - Biologisch-ökologische Daten zur Flora Deutschlands, S. 1-2, Bonn |
Type of seed production » |
Type of seed production |
s (amphimictic, sexual) |
Reference |
Anmerkung 2002: Sexuelle Samenproduktion, da keine Apomikten in Gattung bekannt |
Dicliny » |
Dicliny |
so (hermaphroditic) |
Abundance |
always [1] |
Reference |
Connor, H.E. 1979: Breeding system in the grasses: a survey. New Zealand Journal of Botany 17:547-574 |
Self-sterility and self-incompatibility » |
Self-sterility and self-incompatibility |
SI (self-incompatibel) |
Reference |
Lundqvist, A. 1965: Self-incompatibility in Dactylis aschersoniana Graebn.. Hereditas 54:76-87 |
Systematic reference |
species [S] |
SI mechanism » |
SI mechanism |
GSI (gametophytic self-incompatibility) |
Reference |
de Nettancourt, D. 1977: Incompatibility in angiosperms. Springer, Berlin |
Pollen vector » |
Pollen vector |
wi (wind) Pollen vector group: ab (abiotische Bestäubung) |
Abundance |
the rule [2] |
Reference |
Anmerkung 2002: pers. obs. |
Systematic reference |
species [S] |
Pollen vector |
se (selfing) Pollen vector group: se (Selbstbestäubung) |
Abundance |
rare [4] |
Reference |
Anmerkung 2002: pers. obs. |
Systematic reference |
species [S] |
Breeding system » |
Breeding system |
X (allogamous) |
Reference |
Anmerkung 2002: xenogam, da SI |
Flower class after MUELLER » |
Flower class after MUELLER |
W (wind flowers) Typical pollinators: - |
Flower type after KUGLER » |
Flower type after KUGLER |
0 (not applicable) |
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Fruit type » |
Fruit type |
Nu (nut) |
Diaspore type » |
Diaspore type |
FZb (fruit with appendage) |
Germinule type » |
Heteromorphic type |
n (not heteromorphic) |
Germinule type |
F (fruit) |
Information available |
True |
Development of nutritious appendages |
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Development of flat appendages |
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Development of elongated appendages |
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Development of additional appendages |
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Heteromorphic type |
n (not heteromorphic) |
Germinule type |
FZb (fruit with appendage) |
Information available |
True |
Development of nutritious appendages |
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Development of flat appendages |
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Development of elongated appendages |
sometimes [2] |
Development of additional appendages |
always [1] |
Sizes » |
Measured object |
Germinule |
Type of germinule or diaspore |
F (fruit) |
Constraint |
False |
Heteromorphic type |
n (not heteromorphic) |
Length (minimum) [mm] |
2.0 |
Length (mean) [mm] |
2.1 |
Length (maximum) [mm] |
2.5 |
Width (minimum) [mm] |
0.5 |
Width (mean) [mm] |
0.6 |
Width (maximum) [mm] |
0.8 |
Height (minimum) [mm] |
|
Height (mean) [mm] |
0.5 |
Height (maximum) [mm] |
|
Measured object |
Diaspore |
Type of germinule or diaspore |
FZb (fruit with appendage) |
Constraint |
False |
Heteromorphic type |
n (not heteromorphic) |
Length (minimum) [mm] |
4.0 |
Length (mean) [mm] |
5.0 |
Length (maximum) [mm] |
7.0 |
Width (minimum) [mm] |
0.6 |
Width (mean) [mm] |
0.8 |
Width (maximum) [mm] |
1.0 |
Height (minimum) [mm] |
0.5 |
Height (mean) [mm] |
0.6 |
Height (maximum) [mm] |
0.8 |
Measured object |
Germinule |
Type of germinule or diaspore |
FZb (fruit with appendage) |
Constraint |
False |
Heteromorphic type |
n (not heteromorphic) |
Length (minimum) [mm] |
4.0 |
Length (mean) [mm] |
5.0 |
Length (maximum) [mm] |
7.0 |
Width (minimum) [mm] |
0.6 |
Width (mean) [mm] |
0.8 |
Width (maximum) [mm] |
1.0 |
Height (minimum) [mm] |
0.5 |
Height (mean) [mm] |
0.6 |
Height (maximum) [mm] |
0.8 |
special references:
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Grime, J.P., Mason, G., Curtis, A.V., Rodman, J., Band, S.R., Mowforth, M.A., Neal, A.M., Shaw, S. 1981: A comparative study of germination characteristics in a local flora. Journal of Ecology 69:1017-1069 (Gattung)
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Thompson, K., Band, S.R., Hodgson, J.G. 1993: Seed size and shape predict persistence in soil. Functional Ecology 7:236-241 (Gattung)
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Grime, J.P., Hodgson, J.G., Hunt, R. 1988: Comparative Plant Ecology. Unwin Hyman, London (Gattung)
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Bakker, J.P., Bakker, E.S., Rosén, E., Verweij, G.L. 1997: The soil seed bank of undisturbed and disturbed dry limestone grassland on Öland (Sweden). Z. Ökologie Nat. sch. 6:9-18 (Gattung)
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Brouwer, W., Stählin, A. 1955: Handbuch der Samenkunde. DLG-Verlag, Frankfurt/Main (Gattung)
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Kaltofen, H., Schrader, A. 1991: Gräser. Biologie - Bestimmung - Wirtschaftliche Bedeutung. DVL, Berlin (Gattung)
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Luftensteiner, H.W. 1982: Untersuchungen zur Verbreitungssbiologie von Pflanzengemeinschaften an vier Standorten in Niederösterreich. Bibliotheca Botanica 135:1-68 (Gattung)
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Heinisch, O. 1955: Samenatlas der wichtigsten Futterpflanzen und ihrer Unkräuter. Deutsche Akad. Landwirtsch.-Wiss., Berlin (Gattung)
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Habitat » |
Habitat |
T1.1.2.3 (null) Alliance: Carpinion betuli
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Occurrence questionable |
False |
Occurence restricted |
False |
Annotation |
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Class » |
English circumscription |
07.4 (Communities of clear-felled areas) Class: Epilobietea angustifolii
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English circumscription |
10.2 (Mesophilous, summer-green deciduous forests) Class: Carpino-Fagetea
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