Mallow Rust
Puccinia malvacearum Bertero ex Mont.
Mallow Rust: https://marylandbiodiversity.com/species/21551
Synonyms
Hollyhock Rust 
Tags

Map Snapshot

5 Records

Status

Mallow Rust is a microscopic fungus. Microscopic or molecular data are necessary to confirm identification. Observations without supporting data are speculative.

Description

Mallow Rust causes orange leaf spots on members of the mallow family (Malvaceae). It is particularly noticeable on wild Malva species and cultivated hollyhocks.

Eating mushrooms can be dangerous. One should do so only with expert advice and great care. MBP accepts no liability for injury sustained in consuming fungi or other biodiversity. Use of media featured on Maryland Biodiversity Project is only permitted with express permission of the photographer.

Source: Wikipedia

Puccinia malvacearum
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Fungi
Division: Basidiomycota
Class: Pucciniomycetes
Order: Pucciniales
Family: Pucciniaceae
Genus: Puccinia
Species:
P. malvacearum
Binomial name
Puccinia malvacearum
Bertero ex Mont. (1852)[1]
Synonyms[2][3]

Dasyspora malvacearum (Bertero ex Mont.) Arthur, Résult. Sci. Congr. Bot. Wien 1905: 346 (1906)
Leptopuccinia malvacearum (Bertero ex Mont.) Rostr., Plantepatologi: 268 (1902)
Micropuccinia malvacearum (Bertero ex Mont.) Arthur & H.S.Jacks., Bull. Torrey bot. Club 48: 41 (1921)
Puccinia sidae-rhombifoliae Mayor, in Fuhrmann & Mayor, Mém. Soc. Sci. Nat. Neuchâtel 5: 484 (1914)

Puccinia malvacearum on Pelargonium geranium

Puccinia malvacearum, also known as hollyhock or mallow rust, is a fungal species within the genus Puccinia known for attacking members of the family Malvaceae. An autoecious pathogen, it can complete its life cycle using a single host.

It was originally found on the leaves of a species of Malva in Chile.[3] Other plants also affected by the rust include Abutilon, Alcea (Hollyhock),[4] Hibiscus, Lavatera, Malvastrum and Sphaeralcea.

Suggested control measures (in the US), include sanitation (removal or destruction of affected plants or plant portions) or treatment with fungicides.

See also

[edit]

References

[edit]
  1. ^ Bertero ex Mont., in Gay, Hist. fis. y polit. Chile, Bot. 8: 43 (1852)
  2. ^ "Puccinia malvacearum Bertero ex Mont. 1852". MycoBank. International Mycological Association. Retrieved 2011-07-08.
  3. ^ a b "Species Fungorum - GSD Species". www.speciesfungorum.org. Retrieved 20 August 2023.
  4. ^ O'Donnell, K.L.; Mclaughlin, D.J. (1981). "Ultrastructure of meiosis in the hollyhock rust fungus, Puccinia malvacearum 1. Prophase I—Prometaphase I.". Protoplasma. 108 (3–4): 225–244. doi:10.1007/BF02224421.

Other sources

[edit]
[edit]