Tranzschelia discolor

Description

Tranzschelia discolor is a rust with the primary host, Prunus sp., chiefly Prunus domestica.  Small brown uredinia and black telia are borne on the leaf undersides, but these are not gall-causers. 

Galls are caused on the alternate host, Anemone, including Anemone blanda, A coronaria or A fulgens; white aecia and spermogonia cover the leaf undersides, causing thickening of the leaf. 

Similar Species

Tranzschelia pruni-spinosae

Identification difficulty

microscopy

Recording advice

Photograph the smut and the host; note the host-plant in your comments.  We recommend that this is confirmed by an expert before submission to Naturespot; microscopic examination may be needed

Habitat

Prunus species

UK Status

Uncommon or under-recorded.

VC55 Status

Uncommon or under-recorded.

Leicestershire & Rutland Map

MAP KEY:

Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2025+ | 2020-2024 | pre-2020

UK Map

Species profile

Common names
Plum Rust
Species group:
fungus
Kingdom:
Fungi
Order:
Pucciniales
Family:
Tranzscheliaceae
Records on NatureSpot:
3
First record:
11/09/2019 (lemmon, roy)
Last record:
14/10/2021 (lemmon, roy)

Total records by month

% of records within its species group

10km squares with records

The latest images and records displayed below include those awaiting verification checks so we cannot guarantee that every identification is correct. Once accepted, the record displays a green tick.

In the Latest Records section, click on the header to sort A-Z, and again to sort Z-A. Use the header boxes to filter the list.

Latest images

Latest records