Comfrey Rust - Melampsorella symphyti

Description

The primary hosts of the rust fungus Melampsorella symphyti are various members of the Boraginaceae including Common Comfrey and Russian Comfrey.  There is some yellowing of the upper surface of affected leaves, but the underside may be completely covered with the yellow-orange uredinia.

The alternate aecial host is the Silver-fir, Abies.   It is not considered to be a gall causer on either host.

Similar Species

The closely related Melampsorella caryophyllacearum also affects Silver-fir, causing Witches'-broom galls

Identification difficulty
Recording advice

Unless identified by a recognised expert, a photo is required. Please state the host plant on any records for this rust.

UK Status

Widespread in Britain.

VC55 Status

Status in Leicestershire and Rutland is difficult to determine due to lack of records.

Leicestershire & Rutland Map

MAP KEY:

Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2020+ | 2015-2019 | pre-2015

UK Map

Species profile

Common names
Comfrey Rust
Species group:
Fungi
Kingdom:
Fungi
Order:
Pucciniales
Family:
Pucciniastraceae
Records on NatureSpot:
1
First record:
15/05/2020 (Calow, Graham)
Last record:
15/05/2020 (Calow, Graham)

Total records by month

% of records within its species group

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