| species information (Systematics, BiolFlor-Names, Status) |
| BiolFlor-Name |
family |
german name(s) |
| Lactuca virosa L. |
Asteraceae » |
Gift-Lattich
|
| 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) |
| Lactuca virosa L. |
accepted |
|
| Chromosome number » |
| Basic chromosome number |
9 |
| Chromosome number 2n |
18 |
| 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) |
4.8 |
| Chromosome number |
18 |
| Quality |
chromosome number known and occurring in Germany [b] |
| Authorised in BENNET & LEITCH 2001 |
False |
| Reference |
Koopman, W.J.M. 2000: Identifying lettuce species (Lactuca subsect. Lactuca, Asteraceae): A practical application of flow cytometry. Euphytica 116:151-159 |
|
| 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 |
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 |
Anmerkung 2002: Sexuelle Samenproduktion, da keine Apomikten in Gattung bekannt |
| Dicliny » |
| Dicliny |
so (hermaphroditic) |
| Abundance |
always [1] |
| Reference |
Knuth, P. 1898: Handbuch der Blütenbiologie. Leipzig |
| Dichogamy » |
| Dichogamy |
a1 (slightly protandrous) |
| Reference |
Knuth, P. 1898: Handbuch der Blütenbiologie. Leipzig |
| Pollen vector » |
| Pollen vector |
se (selfing)
Pollen vector group: se (Selbstbestäubung) |
| Abundance |
unknown [0] |
| Reference |
Frank, D., Klotz, S. 1990: Biologisch-ökologische Daten zur Flora der DDR. Wissenschaftliche Beiträge Martin-Luther Univ. Halle-Wittenberg Vol. 32 (P41) |
| Systematic reference |
genus [G] |
| Pollen vector |
in (insects)
Pollen vector group: zo (Tierbestäubung) |
| Abundance |
unknown [0] |
| Reference |
Frank, D., Klotz, S. 1990: Biologisch-ökologische Daten zur Flora der DDR. Wissenschaftliche Beiträge Martin-Luther Univ. Halle-Wittenberg Vol. 32 (P41) |
| Systematic reference |
genus [G] |
| P/O ratio » |
| P/O ratio |
890.0 |
| Reference |
Mejias, J.A. 1994: Self-fertility and associated flower head traits in the Iberian taxa of Lactuca and related genera (Asteraceae: Lactuceae). Plant Systematics and Evolution 191:147-160 |
| Flower color » |
| Flower colour |
light yellow |
| Basic flower colour |
g (yellow) |
| 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 |
5 (40-66 %) |
| UV reflection in the centre of the flower |
1 (0-7 %) |
| UV reflection pattern |
1 (UV reflectance pattern present) |
| Flower class after MUELLER » |
| Flower class after MUELLER |
B` (flower associations with totally hidden nectar)
Typical pollinators: bees, bumble bees, wasps, bombylides, syrphids |
| Flower type after KUGLER » |
| Flower type after KUGLER |
7.2b (flower heads, Asteraceae, only ray flowers) |
|
| 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 |
|
| Development of flat appendages |
sometimes [2] |
| Development of elongated appendages |
always [1] |
| Development of additional appendages |
|
| Heteromorphic type |
n (not heteromorphic) |
| Germinule type |
FZb (fruit with appendage) |
| Information available |
True |
| Development of nutritious appendages |
|
| Development of flat appendages |
sometimes [2] |
| Development of elongated appendages |
always [1] |
| Development of additional appendages |
|
| Sizes » |
| Measured object |
Germinule |
| Type of germinule or diaspore |
F (fruit) |
| Constraint |
False |
| Heteromorphic type |
n (not heteromorphic) |
| Length (minimum) [mm] |
6.0 |
| Length (mean) [mm] |
8.0 |
| Length (maximum) [mm] |
10.0 |
| Width (minimum) [mm] |
1.1 |
| Width (mean) [mm] |
1.5 |
| Width (maximum) [mm] |
1.8 |
| Height (minimum) [mm] |
0.3 |
| Height (mean) [mm] |
0.4 |
| Height (maximum) [mm] |
0.5 |
| Measured object |
Germinule |
| Type of germinule or diaspore |
F (fruit) |
| Constraint |
True |
| Heteromorphic type |
n (not heteromorphic) |
| Length (minimum) [mm] |
3.0 |
| Length (mean) [mm] |
3.8 |
| Length (maximum) [mm] |
4.5 |
| Width (minimum) [mm] |
1.1 |
| Width (mean) [mm] |
1.5 |
| Width (maximum) [mm] |
1.8 |
| Height (minimum) [mm] |
0.3 |
| Height (mean) [mm] |
0.4 |
| Height (maximum) [mm] |
0.5 |
| special references:
|
| Brouwer, W., Stählin, A. 1955: Handbuch der Samenkunde. DLG-Verlag, Frankfurt/Main (Gattung)
|
| Ferakova, V. 1977: The genus Lactuca L. in Europe. In: S. 1-122, Bratislava Univerzita Komenskeho, Bratislava (Gattung)
|
| Hanf, M. 1984: Ackerunkräuter Europas mit ihren Keimlingen und Samen. . BLV Verlagsgesellschaft, München, Wien, Zürich. (Gattung)
|
| Luftensteiner, H.W. 1982: Untersuchungen zur Verbreitungssbiologie von Pflanzengemeinschaften an vier Standorten in Niederösterreich. Bibliotheca Botanica 135:1-68 (Gattung)
|
| van der Ham, R.W.J.M. 1981: Gifsla (Lactuca virosa L.) en kompassla (Lactuca serrioa L.) in Nederland. Gorteria 10:179-184 (Gattung)
|
|
| Habitat » |
| Habitat |
T10.3.3.1 (null)
Alliance: ???
|
| Occurrence questionable |
False |
| Occurence restricted |
False |
| Annotation |
|
| Habitat |
T5.1 (null)
Alliance: Thlaspietea rotundifolii
|
| Occurrence questionable |
False |
| Occurence restricted |
False |
| Annotation |
|
| Habitat |
T8.2.1.2 (null)
Alliance: Galio-Alliarion
|
| Occurrence questionable |
False |
| Occurence restricted |
False |
| Annotation |
|
|
| Class » |
| English circumscription |
04.3 (Communities of boulders and scree)
Class: Thlaspietea rotundifolii
|
| English circumscription |
06.5 (Eusiberian ruderal mugwort and thistles communities, and couch-grasslands)
Class: Artemisietea vulgaris
|
| English circumscription |
07.5 (Nitrophilous tall herb communities)
Class: Galio-Urticetea dioicae
|
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