Fungi: Basidiomycota: Pucciniomycetes: Pucciniales: Pucciniaceae: Puccinia xanthii Schwein.

Puccinia xanthii

Synonyms: Leptopuccinia xanthii, Micropuccinia xanthii.

Extract from Wikipedia article: Puccinia xanthii is a plant pathogen infecting sunflowers. It also causes rust on Xanthium occidentale and can be used as a form of biological control where this plant is an invasive species.

Photos of this mushroom from East and Central Texas

Teliospores (in KOH, low magnification) of cocklebur rust fungus (Puccinia xanthii) from underside of leaves of cocklebur (Xanthium strumarium) collected over sewage line in Lick Creek Park a day before. College Station, Texas, August 13, 2023

Teliospores (in KOH) of cocklebur rust fungus (Puccinia xanthii) from underside of leaves of cocklebur (Xanthium strumarium), collected over sewage line in Lick Creek Park a day before. College Station, Texas, August 13, 2023

Large teliospores (in KOH) of cocklebur rust fungus (Puccinia xanthii) from underside of leaves of cocklebur (Xanthium strumarium), collected over sewage line in Lick Creek Park a day before. College Station, Texas, August 13, 2023

Details of teliospores (in KOH) of cocklebur rust fungus (Puccinia xanthii) from underside of leaves of cocklebur (Xanthium strumarium), collected over sewage line in Lick Creek Park a day before. College Station, Texas, August 13, 2023

Biseptate teliospores (in KOH) of cocklebur rust fungus (Puccinia xanthii) from underside of leaves of cocklebur (Xanthium strumarium), collected over sewage line in Lick Creek Park a day before. College Station, Texas, August 13, 2023

Underside of leaves of cocklebur (Xanthium strumarium) damaged by cocklebur rust fungus (Puccinia xanthii), collected over sewage line in Lick Creek Park a day before. College Station, Texas, August 13, 2023

Cocklebur (Xanthium strumarium) with cocklebur rust fungus (Puccinia xanthii), over sewage line in Lick Creek Park. College Station, Texas, August 15, 2023
Racoon Run Trail, College Station, Brazos County, Texas, United States

Leaves of cocklebur (Xanthium strumarium) with cocklebur rust fungus (Puccinia xanthii), over sewage line in Lick Creek Park. College Station, Texas, August 15, 2023
Racoon Run Trail, College Station, Brazos County, Texas, United States

Shoot of cocklebur (Xanthium strumarium) with cocklebur rust fungus (Puccinia xanthii), over sewage line in Lick Creek Park. College Station, Texas, August 15, 2023
Racoon Run Trail, College Station, Brazos County, Texas, United States

Upper and lowers sides of leaves of cocklebur (Xanthium strumarium) with cocklebur rust fungus (Puccinia xanthii), over sewage line in Lick Creek Park. College Station, Texas, August 15, 2023
Racoon Run Trail, College Station, Brazos County, Texas, United States

Comments

• Data for this species were obtained from the dataset https://www.gbif.org.
• There is a Wikipedia article about this species.

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Links

• List of mushrooms with photos.
• Photos grouped by dates.
• List of Latin names.
• List of common names.
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• Mushrooms from Texas, old version of web page.
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• Collection of mushrooms from Qatar.
• Picture archives.
• Home page of A. Sergeev.

Acknowledgements

Mushroom Observer and Facebook for learning names of local mushrooms.

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