Doassansia sagittariae ex Sagittaria sagittifolia

Lohmarer Wald, Lohmar, NRW, Germany, 22.8.2026

#Doassansia #Doassansiasagitarriae #Sagittaria #Sagittariasagittifolia #Brandpilz #Smutfungus #Phytopathology #FungiFriends #FungiFriday #Nature

Doassansia sagittariae on Arrowhead in central Leeds. This aquatic fungus forms balls of spores with a central cavity which presumably float in the water to reach new hosts.
#FungiFriends #WildPlantDisease

Doassansia sagitarriae ex Sagittaria sagittifolia

#Sagittariasagittifolia #Sagittaria #GewöhnlichesPfeilkraut #arrowhead #Sagittaireàfeuillesenflèche #sagittariacomune #Doassansiasagitarriae #Doassansia #smut #smutfungus #Brandpilz #Brand #Pilz #Fungus #Nature #Phytopathology #FungiFriends

I wanted to look at the Mudwort (Limosella aquatica) at Port Meadow this weekend, following the report of it by @trisnorton.bsky.social
I wanted to find the Smut fungus Doassansia limosellae, which was last seen in the UK in 1929. No luck though.
Here is Mudwort in flower!
@bsbibotany.bsky.social

I hope you have a sample because it may be a very exciting smut. According to the literature, Doassansia is found on the petioles and appears in October. I think it was last recorded in the UK >100 years ago. bladmineerders.nl/parasites/fu...

Doassansia sagitarriae ex Sagittaria sagittifolia

#sagittariasagittifolia #sagittaria #GewöhnlichesPfeilkraut #arrowhead #Sagittaireàfeuillesenflèche #sagittariacomune #doassansiasagitarriae #doassansia #smut #smutfungus #brandpilz #brand #pilz #fungus #nature #phytopathology #fungifriends