| species information (Systematics, BiolFlor-Names, Status) |
| BiolFlor-Name |
family |
german name(s) |
| Drosera intermedia Hayne |
Droseraceae » |
Mittlerer Sonnentau
|
| 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) |
| Drosera intermedia Hayne |
accepted |
| Drosera longifolia , auct. |
Synonym |
|
| Chromosome number » |
| Basic chromosome number |
10 |
| Chromosome number 2n |
20 |
| 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 |
|
| DNA content » |
| DNA content (pg/2C) |
2.0 |
| Chromosome number |
20 |
| Quality |
chromosome number known and occurring in Germany [b] |
| Authorised in BENNET & LEITCH 2001 |
True |
| Reference |
Bennett, M.D., Smith, J.S. 1976: Nuclear DNA amounts in angiosperms. Philosophical Transactions of the Royal Society London B 274:227-274 |
|
| Life form » |
| Life form |
H (Hemicryptophyte) |
| Qualifier |
always [1] |
| Life span » |
| Life span |
p (pluriennial-pollakanthic) |
| Qualifier |
always [1] |
| Vegetative propagation » |
| Vegetative propagation |
ps (Phyllogenous shoot) |
| Qualifier |
always [1] |
| Rosettes » |
| Rosettes |
h (Hemirosette plant) |
| Qualifier |
always [1] |
| Rosettes |
g (Rosette plant) |
| Qualifier |
always [1] |
| Nutritional adaptations » |
| Nutritional adaptations |
c (carnivorous) |
| Qualifier |
always [1] |
| special references:
|
| Crowder, A.A., Pearson, M.C., Grubb, P.J., Langlois, P.H. 1990: Biological Flora of the British Isles: Drosera intermedia Drev. & Hayne (Drosera longifolia auct.). Journal of Ecology 78:257-267
|
| Holm, T. 1925: On the development of buds upon roots and leaves. Annals of Botany 39:867-881
|
| Raunkiaer, C. 1934: The life forms of plants and statistical plant geography. Oxford
|
| Irmisch, T. 1856: Notiz über Drosera intermedia und rotundifolia. Bot. Ztg. 14:729-731
|
|
| Flowering phenology » |
| Begin of flowering (months) |
7 |
| End of flowering (months) |
8 |
| 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 |
|
| Type of reproduction » |
| Type of reproduction |
sv (by seed and vegetatively) |
| Reference |
Crowder, A.A., Pearson, M.C., Grubb, P.J., Langlois, P.H. 1990: Biological Flora of the British Isles: Drosera intermedia Drev. & Hayne (Drosera longifolia auct.). Journal of Ecology 78:257-267 |
| Type of seed production » |
| Type of seed production |
s (amphimictic, sexual) |
| Reference |
Crowder, A.A., Pearson, M.C., Grubb, P.J., Langlois, P.H. 1990: Biological Flora of the British Isles: Drosera intermedia Drev. & Hayne (Drosera longifolia auct.). Journal of Ecology 78:257-267 |
| Dicliny » |
| Dicliny |
so (hermaphroditic) |
| Abundance |
always [1] |
| Reference |
Weber, H.E. 1995: Spermatophyta: Angiospermae: Dicotyledones 2(2). In: Hegi, G.B. (Hrsg.) Illustrierte Flora von Mitteleuropa, 4 (2a), S. 1-692, Blackwell, Berlin |
| Dichogamy » |
| Dichogamy |
h (homogamous) |
| 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 |
se (selfing)
Pollen vector group: se (Selbstbestäubung) |
| Abundance |
possible [5] |
| Reference |
Knuth, P. 1898: Handbuch der Blütenbiologie. Leipzig |
| Systematic reference |
species [S] |
| Pollen vector |
kl (cleistogamy)
Pollen vector group: se (Selbstbestäubung) |
| Abundance |
the rule [2] |
| Reference |
Crowder, A.A., Pearson, M.C., Grubb, P.J., Langlois, P.H. 1990: Biological Flora of the British Isles: Drosera intermedia Drev. & Hayne (Drosera longifolia auct.). Journal of Ecology 78:257-267 |
| Systematic reference |
species [S] |
| Pollen vector |
in (insects)
Pollen vector group: zo (Tierbestäubung) |
| Abundance |
rare [4] |
| Reference |
Knuth, P. 1898: Handbuch der Blütenbiologie. Leipzig |
| Systematic reference |
species [S] |
| Breeding system » |
| Breeding system |
AO (autogamous) |
| Reference |
Weber, H.E. 1995: Spermatophyta: Angiospermae: Dicotyledones 2(2). In: Hegi, G.B. (Hrsg.) Illustrierte Flora von Mitteleuropa, 4 (2a), S. 1-692, Blackwell, Berlin |
| Floral rewards » |
| Floral rewards |
1 (nectar) |
| Reference |
Knuth, P. 1898: Handbuch der Blütenbiologie. Leipzig |
| Amount of floral reward |
3 (present) |
| Flower color » |
| Flower colour |
white |
| Basic flower colour |
w (white) |
| Reference |
Schubert, R., Jäger, E.J., Werner, K. (Hrsg.) 1987: Exkursionsflora Band 3. Atlas der Gefäßpflanzen. 6. Aufl., Volk und Wissen, Berlin |
| UV reflection of the flower » |
| UV reflection in the periphery of the flower |
2 (8-15 %) |
| UV reflection in the centre of the flower |
2 (8-15 %) |
| UV reflection pattern |
0 (no UV reflectance patterns) |
| Flower class after MUELLER » |
| Flower class after MUELLER |
AB (flowers with partly hidden nectar)
Typical pollinators: syrphids, bees |
| Flower type after KUGLER » |
| Flower type after KUGLER |
1.2bc (disk flowers with nectar ± hidden nectaries at base of petals) |
|
| Fruit type » |
| Fruit type |
Ka (capsule) |
| Diaspore type » |
| Diaspore type |
S (seed) |
| Germinule type » |
| Heteromorphic type |
n (not heteromorphic) |
| Germinule type |
S (seed) |
| Information available |
True |
| Development of nutritious appendages |
|
| Development of flat appendages |
|
| Development of elongated appendages |
|
| Development of additional appendages |
|
| Weights » |
| Measured object |
Germinule |
| Type of germinule or diaspore |
S (seed) |
| Constraint |
False |
| Heteromorphic type |
n (not heteromorphic) |
| Weight (minimum) [mg] |
0.0 |
| Weight (mean) [mg] |
0.0 |
| Weight (maximum) [mg] |
0.0 |
| Measured object |
Diaspore |
| Type of germinule or diaspore |
S (seed) |
| Constraint |
False |
| Heteromorphic type |
n (not heteromorphic) |
| Weight (minimum) [mg] |
0.0 |
| Weight (mean) [mg] |
0.0 |
| Weight (maximum) [mg] |
0.0 |
| Sizes » |
| Measured object |
Germinule |
| Type of germinule or diaspore |
S (seed) |
| Constraint |
False |
| Heteromorphic type |
n (not heteromorphic) |
| Length (minimum) [mm] |
0.6 |
| Length (mean) [mm] |
0.8 |
| Length (maximum) [mm] |
1.0 |
| Width (minimum) [mm] |
0.3 |
| Width (mean) [mm] |
0.4 |
| Width (maximum) [mm] |
0.4 |
| Height (minimum) [mm] |
0.3 |
| Height (mean) [mm] |
0.4 |
| Height (maximum) [mm] |
0.4 |
| Measured object |
Diaspore |
| Type of germinule or diaspore |
S (seed) |
| Constraint |
False |
| Heteromorphic type |
n (not heteromorphic) |
| Length (minimum) [mm] |
0.6 |
| Length (mean) [mm] |
0.8 |
| Length (maximum) [mm] |
1.0 |
| Width (minimum) [mm] |
0.3 |
| Width (mean) [mm] |
0.4 |
| Width (maximum) [mm] |
0.4 |
| Height (minimum) [mm] |
0.3 |
| Height (mean) [mm] |
0.4 |
| Height (maximum) [mm] |
0.4 |
| special references:
|
| 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)
|
| Thompson, K., Band, S.R., Hodgson, J.G. 1993: Seed size and shape predict persistence in soil. Functional Ecology 7:236-241 (Gattung)
|
| Crowder, A.A., Pearson, M.C., Grubb, P.J., Langlois, P.H. 1990: Biological Flora of the British Isles: Drosera L.. Journal of Ecology 78:233-252 (Gattung)
|
| Crowder, A.A., Pearson, M.C., Grubb, P.J., Langlois, P.H. 1990: Biological Flora of the British Isles: Drosera anglica Huds.. Journal of Ecology 78:252-257 (Gattung)
|
| Crowder, A.A., Pearson, M.C., Grubb, P.J., Langlois, P.H. 1990: Biological Flora of the British Isles: Drosera intermedia Drev. & Hayne (Drosera longifolia auct.). Journal of Ecology 78:257-267 (Gattung)
|
| Anderberg, A.L. 1994: Atlas of seeds and small fruits of Northwest-European plant species with morphological descriptions. - Part 4 (Resedaceae - Umbelliferae). Swedish Museum of Natural History, Stockholm (Gattung)
|
| Beijerink, W. 1947: Zadenatlas der Nederlandsche Flora. Biol. Stat. Wijster, Wageningen (Gattung)
|
| Brouwer, W., Stählin, A. 1955: Handbuch der Samenkunde. DLG-Verlag, Frankfurt/Main (Gattung)
|
| Dwyer, T.P. 1983: Seed structure of carnivorous plants. Carnivorous Plant Newsletter 12:8; 33; 45-23; 38; 50 (Gattung)
|
| Strykstra, R.J. 1997: Seed dispersal in a Dutch grassland reserve. . Univesity of Ulster, Coleraine. (Gattung)
|
|
| Habitat » |
| Habitat |
S1.1 (null)
Alliance: Sphagno-Utricularion
|
| Occurrence questionable |
False |
| Occurence restricted |
False |
| Annotation |
|
|
| Class » |
| English circumscription |
01.3 (Bladderwort communities)
Class: Utricularietea intermedio-minoris
|
| English circumscription |
02.2 (Communities of pools and bog-pools)
Class: Scheuchzerio-Caricetea nigrae
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