Fahndungsaufruf neue Veronica aus der anagallis-aquatica-Gruppe

[Kraichgauer]

Hallo zusammen,

die Tschechen um Bob Travnicek haben eine neue Art aus der anagallis-aquatica-Gruppe herausgefieselt und bitten jetzt um Mithilfe bei der Suche in Deutschland. Sie gehen fast sicher davon aus, dass sie auch bei uns vorkommt. Der Name ist allerdings noch provisionell. Die anhängenden Photos sind alle (c) Bohumil Travnicek.
Evtl. Funde und Daten können über meine private e-mail weitergeleitet werden.

Jetzt wäre eigentlich eine gute Zeit für die Suche!

Gruß und danke, Michael

Dear friends from Germany,

I would like to ask you for your help to search for a newly distinguished taxon from the Veronica anagallis-aquatica range in Germany. This type occurs quite often in the warmer regions of the Czech Republic (Morava and Silesia, Polabí in the Czech Republic) and its occurrence in Germany is very likely. The type is close to the species V. anagallis-aquatica s. str. and V. catenata and, like both of these species, it is also tetraploid (V. anagalloides and V. scardica stand more apart). It can cross with both V. catenata (hybrids are completely sterile, do not form capsules) and V. anagallis-aquatica (hybrids are sterile or partially form capsules). The type occurs both on bare moist soil (edges of ponds, banks of ponds and sandpits, field wetlands) and in muddy slow-flowing streams (with Berula erecta or Nasturtium). It can be distinguished by the following key:

1a) Inflorescence completely without stalked glands; C pale blue or pale blue-violet; the lowermost leaves of first-year plants (and leaves of its lateral ground branchs) with short petiole and with blade obovate to roundly obovate; stem leaves widest +/- in the middle. - Fruit peduncles point in arc upwards, the lowermost peduncles of racemes usually significantly longer (most often +/- 2x) than bracts; capsules usually slightly longer as wide ....V. anagallis-aquatica

1b) Inflorescence at least with flower (fruit) peduncles with stalked glands; also the lowermost leaves of first-year plants (and leaves of its lateral ground branch) usually without petioles and with blade narrowly oblong or oblong-oblanceolate; stem leaves usually widest in lower part (lanceolate to broadly lanceolate)...................2

2a) Stalked glands presents on flower (fruit) peduncles, on axis of inflorescence racemes and also on capsules (ovaries), stalk of glands usually short; fruit peduncles point obliquely to sides, the lowermost peduncles of racemes usually +/- as long as bracts; capsules usually as long as wide; C pale pink .... V. catenata

2b) Stalked glands presents only on flower (fruit) peduncles, sometimes also in upper part of axis of inflorescence racemes, but never on capsules (ovaries), stalk of glands relatively long; fruit peduncles point in arc upwards, the lowermost peduncles of racemes usually significantly longer (most often +/- 2x) than bracts; capsules usually slightly longer as wide; C whitish pink (pale lila - +/- as V. serpyllifolia) ..... V. "catenatoides"

I send you photos of this interesting taxon (V. "catenatoides") as attachment.

I will be happy if you also ask your botanical friends who are interested in the wild plants to look for V. "catenatoides".

Thanks in advance for any help on this matter.

With best wishes, Bob

[Kraichgauer]

Lenz Meierott schreibt hierzu:

"Dear Bob,
thank you for this interesting information.
I think, that we could have such a Veronica in Franconia. I had collected some vouchers, but they are in [M], I can't proof them now.
In our new Flora of Bavaria (not yet published) we have some comment sub Veronica anagallis-aquatica (Author Dirk Albach):

A: Aquatische Arten neigen zu starker Variation in Abhängigkeit von Wasserstand und Besonnung, z. B. kürzere Blätter und Internodien, fehlende Verzweigung. Daher ist die Variationsbreite gerade mit der von V. catenata stark überlappend und eine Bestimmung oft schwierig. Dass es sich um gute Arten handelt, ist am Vorkommen steriler Hybriden (V. ×lackschewitzii J.B. Keller) erkennbar, die z.B. mehrfach in Niederbayern gefunden wurden. Drüsige Formen, die nicht zu V. anagalloides gehören, sind u. a. in Unter- und Mittelfranken gefunden worden (var. anagallidiformis Boreau [26271]; MEIEROTT 2001, 2008a)."

Gruß Michael

[Anagallis]

Sind mit "peduncles" wirklich die Fruchtstandsstiele gemeint? Der Text klingt, als bezöge er sich auf die Fruchtstiele, also "pedicles".

[Kraichgauer]

Bob ist auch kein native speaker... Kann schon mal sein, dass er das verwechselt. Aber ich kann ja wesentlich weniger Tschechisch als er Englisch. (Tschechisch ist fast so schlimm wie Finnisch. Man versteht nix.)

Gruß Michael