species information (Systematics, BiolFlor-Names, Status) |
BiolFlor-Name |
family |
german name(s) |
Borago officinalis L. |
Boraginaceae » |
Gurkenkraut
Boretsch
|
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) |
Borago officinalis L. |
accepted |
|
Chromosome number » |
Basic chromosome number |
8 |
Chromosome number 2n |
16 |
Chromosome number (Germany) |
False |
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) |
3.5 |
Chromosome number |
16 |
Quality |
chromosome number known and occurring in Germany [b] |
Authorised in BENNET & LEITCH 2001 |
True |
Reference |
Bennett, M.D., Bhandol, P., Leitch, I.J. 2000: Nuclear DNA amounts in angiosperms and their modern uses - 807 new estimates. Annals of Botany 86:859-909 |
|
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 |
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 |
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 |
Knuth, P. 1898: Handbuch der Blütenbiologie. Leipzig |
Dicliny » |
Dicliny |
so (hermaphroditic) |
Abundance |
always [1] |
Reference |
Knuth, P. 1898: Handbuch der Blütenbiologie. Leipzig |
Dichogamy » |
Dichogamy |
a2 (protandrous) |
Reference |
Knuth, P. 1898: Handbuch der Blütenbiologie. Leipzig |
Self-sterility and self-incompatibility » |
Self-sterility and self-incompatibility |
I+ (± self-incompatibel) |
Reference |
Knuth, P. 1898: Handbuch der Blütenbiologie. Leipzig |
Systematic reference |
species [S] |
Self-sterility and self-incompatibility |
SI (self-incompatibel) |
Reference |
Crowe, L.K. 1971: The polygenic control of outbreeding in Borago officinalis. Heredity 27:111-118 |
Systematic reference |
species [S] |
SI mechanism » |
SI mechanism |
PSI (postcygotic self-incompatibility) |
Reference |
Seavey, S.R., Bawa, K.S. 1986: Late-acting self-incompatibility in angiosperms. The Botanical Review 52:195-219 |
Pollen vector » |
Pollen vector |
se (selfing) Pollen vector group: se (Selbstbestäubung) |
Abundance |
rare [4] |
Reference |
Knuth, P. 1898: Handbuch der Blütenbiologie. Leipzig |
Systematic reference |
species [S] |
Pollen vector |
in (insects) Pollen vector group: zo (Tierbestäubung) |
Abundance |
the rule [2] |
Reference |
Knuth, P. 1898: Handbuch der Blütenbiologie. Leipzig |
Systematic reference |
species [S] |
Breeding system » |
Breeding system |
X (allogamous) |
Reference |
Fryxell, P.M. 1957: Modes of reproduction of higher plants. The Botanical Review 23:135-233 |
Floral rewards » |
Floral rewards |
1 (nectar) |
Reference |
Knuth, P. 1898: Handbuch der Blütenbiologie. Leipzig |
Amount of floral reward |
3 (present) |
Flower color » |
Flower colour |
bright blue, rarely white |
Basic flower colour |
b (blue) |
Reference |
Bayer, E., Buttler, K.P., Finkenzeller, X., Grau, J.Steinbach, G. (Hrsg.) 1987: Pflanzen des Mittelmeerraumes. Mosaik-Verlag, München |
Flower colour |
azure blue, gorge white |
Basic flower colour |
b (blue) |
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 |
4 (28-39 %) |
UV reflection in the centre of the flower |
4 (28-39 %) |
UV reflection pattern |
1 (UV reflectance pattern present) |
UV reflection in the periphery of the flower |
6 (67-85 %) |
UV reflection in the centre of the flower |
6 (67-85 %) |
UV reflection pattern |
0 (no UV reflectance patterns) |
Flower class after MUELLER » |
Flower class after MUELLER |
H (hymenoptere flowers) Typical pollinators: hymenopteres |
Flower type after KUGLER » |
Flower type after KUGLER |
3.1 (bell shaped flowers with powdery pollen) |
|
Fruit type » |
Fruit type |
BrF (lomentum) |
Diaspore type » |
Diaspore type |
TF (mericarp) |
Germinule type » |
Heteromorphic type |
n (not heteromorphic) |
Germinule type |
TF (mericarp) |
Information available |
True |
Development of nutritious appendages |
always [1] |
Development of flat appendages |
|
Development of elongated appendages |
|
Development of additional appendages |
|
Weights » |
Measured object |
Germinule |
Type of germinule or diaspore |
TF (mericarp) |
Constraint |
False |
Heteromorphic type |
n (not heteromorphic) |
Weight (minimum) [mg] |
13.0 |
Weight (mean) [mg] |
15.5 |
Weight (maximum) [mg] |
18.0 |
Measured object |
Diaspore |
Type of germinule or diaspore |
TF (mericarp) |
Constraint |
False |
Heteromorphic type |
n (not heteromorphic) |
Weight (minimum) [mg] |
13.0 |
Weight (mean) [mg] |
15.5 |
Weight (maximum) [mg] |
18.0 |
Sizes » |
Measured object |
Germinule |
Type of germinule or diaspore |
TF (mericarp) |
Constraint |
True |
Heteromorphic type |
n (not heteromorphic) |
Length (minimum) [mm] |
4.0 |
Length (mean) [mm] |
5.0 |
Length (maximum) [mm] |
6.0 |
Width (minimum) [mm] |
2.5 |
Width (mean) [mm] |
2.8 |
Width (maximum) [mm] |
3.0 |
Height (minimum) [mm] |
2.5 |
Height (mean) [mm] |
2.8 |
Height (maximum) [mm] |
3.0 |
special references:
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Beijerink, W. 1947: Zadenatlas der Nederlandsche Flora. Biol. Stat. Wijster, Wageningen (Gattung)
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Brouwer, W., Stählin, A. 1955: Handbuch der Samenkunde. DLG-Verlag, Frankfurt/Main (Gattung)
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Hanf, M. 1984: Ackerunkräuter Europas mit ihren Keimlingen und Samen. . BLV Verlagsgesellschaft, München, Wien, Zürich. (Gattung)
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Müller, P. 1955: Verbreitungsbiologie (Diasporologie) der Blütenpflanzen. Veröffentlichungen des Geobotanischen Institutes Rübel Zürich . Verlag Hans Huber, Bern. (Gattung)
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