Observation 22444: Puccinia lycoctoni

When: 2009-06-08

Collection location: Bavščica Valley, Posočje, East Julian Alps, Slovenia [Click for map]

Who: amadej trnkoczy (amadej)

Specimen available

This fungus(?) could be found exclusively on Aconitum leaves in the surrounding.
Lat.: 46.38891 Long.: 13.65082
Code: Bot_350/2009-9343

Substratum: leaves of Aconitum lycoctonum ssp. ranunculifolium

Habitat: tall alpine herb fields, among bushes, near Fagus sylvatica wood-side in an Alpine valley, southeast oriented, partly sunny, fully exposed to precipitations, precipitations ~3.000 mm/year, average temperature 5-7 deg C, elevation 1.280 m (4.200 feet), alpine phytogeographical region.
Place: Bavščica valley, above Planina Bala slightly below hounters’ cottage, East Julian Alps, Posočje, Slovenia EC


Lat.: 46.38538 Long.: 13.64716
Code: Bot_350/2009-9426

Habitat: tall alpine herb fields, near Fagus sylvatica wood-side, east oriented, partly sunny, fully exposed to precipitations, precipitations ~3.000 mm/year, average temperature 5-7 deg C, elevation 1.170 m (3.800 feet), alpine phytogeographical region.
Place: Bavščica valley, just below Planina Bala, East Julian Alps, Posočje, Slovenia EC

Nikon D70 / AF-S Nikorr 18-70mm/f3.5-4.5G ED / Nikorr Micro 105mm/f2.8

[admin – Sat Aug 14 01:58:16 +0000 2010]: Changed location name from ‘Bavščica valley, East Julian Alps, Posocje, Slovenia EC’ to ‘Bavščica Valley, East Julian Alps, Posočje, Slovenia’


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Add Comment
Thank you very much to all for information given.
By: amadej trnkoczy (amadej)
2009-06-23 14:28:01 CDT (-0400)
Puccinia aconiti-rubri
By: Andreas Gminder (mollisia)
2009-06-22 16:02:49 CDT (-0400)

belongs in the recondita-complex and has a host change with Festuca rubra (hence the name). In this species the aecidia do not emerge from discoloured patches on the leave.

What about
By: Gerhard Koller (Gerhard)
2009-06-22 15:59:02 CDT (-0400)

Puccinia aconiti-rubri? Is this a synonym to one of the mentioned species? I recently found some Puccinia on Aconitum lycoctonum myself and named it thus.

Puccinia species
By: Andreas Gminder (mollisia)
2009-06-22 14:44:08 CDT (-0400)

This is a Puccinia species, but on Aconitum there are several species.
First there is Puccinia recondita, which parasites all Aconitum species incl. A. lycoctonum. P. recondita is an aggregat which is hardly seperable without knowing the changing host (in all cases a grass). If you have only the aecidia, the different species in the recondita complex can be separated by their occurence within small discoloured areas, big discoloured areas or no discoloured areas at all.
Second there is Puccinia lycoctoni. This species grows exclusively on Aconitum lycoctonum and has no changing host, so you find the telia on the same substrate as the aecidia, and (important!) on both sides of the leaves.
An lastly there is Uromyces lycoctoni, which als grows exclusively on A. lycoctonum and also has noch changing host. Here the telia are grwoing only on the underside of the leaves.

The aecidia offer nevertheless some characteristics, but I don’t dare to judge which of the two Puccinia is your species.
In P. recondita the aecidia a cylindrical to long cup-shaped, the margin being dissected and turned backwards
In P. lycoctoni they are cup-shaped, the margin being white and crenulate
In U. lycoctoni they are flat dish- to disc-shaped, the margin being very obsolete and soon beginning to fall apart.

I nevertheless tend to Puccinia lycoctoni, because the margin don’t seems to be bent backwards and moreover it is not 100% sure whether P. recondita occurs on Aconitum lycoctoni or not.

Have a look
By: Irene Andersson (irenea)
2009-06-22 14:39:35 CDT (-0400)

at Puccinia recondita, at least Aconitum is mentioned as one of the hosts.