Labiate Powdery Mildew
Neoerysiphe galeopsidis (DC.) U. Braun
Labiate Powdery Mildew: https://www.marylandbiodiversity.org/species/22350
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3 Records

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Status

Labiate Powdery Mildew is a microscopic fungus. Observations without microscopic or molecular confirmation are speculative.

Relationships

Labiate Powdery Mildew is a pathogen of many species, particularly those of the Mint Family (Labiatae or Lamiaceae).

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Source: Wikipedia

Neoerysiphe galeopsidis
Scientific classification Edit this classification
Kingdom: Fungi
Division: Ascomycota
Class: Leotiomycetes
Order: Helotiales
Family: Erysiphaceae
Genus: Neoerysiphe
Species:
N. galeopsidis
Binomial name
Neoerysiphe galeopsidis
(DC.) U. Braun, 1999
Synonyms
  • Erysiphe galeopsidis DC., 1815
  • Golovinomyces galeopsidis (DC.) V.P. Heluta, 1988
  • Oidium leonuri-sibirici Sawada, 1927
  • Oidium leucas-javanicae Sawada, 1927
  • Alphitomorpha ballotae Wallr., 1819
  • Oidium lamii Rabenh., 1853
  • Erysiphe labiatarum Jacz., 1957
  • Erysiphe lamprocarpa var. ballotes Link, 1824
  • Alphitomorpha labiatarum Wallr., 1819
  • Erysiphe labiatarum (Wallr.) Chevall., 1826
  • Erysiphe matheranensis T.S. Viswan., 1958
  • Erysiphe communis var. labiatarum (Wallr.) Link, 1824

Neoerysiphe galeopsidis is a species complex of powdery mildews in the family Erysiphaceae. It is found across Eurasia and North America, and has also been introduced to Australia, where it affects a large variety of different hosts in multiple plant families including the Acanthaceae and Lamiaceae. It has been reported as an accidental infection on Catalpa. Neoerysiphe galeopsidis sensu stricto occurs on multiple genera including Galeopsis and Lamium.[1]

Description

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The fungus forms dense, white fuzzy patches on the leaves of its host. Neoerysiphe galeopsidis sensu lato infects many genera, and may be split up in future. Infections on some plants, such as lamb's-ear, can be less easy to spot.

Taxonomy

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The fungus was formally described in 1815 by De Candolle with the basionym Erysiphe galeopsidis. The species was transferred to the genus Neoerysiphe by Uwe Braun in 1999.[2] Bradshaw et al. (2022) recovered three clear clades within Neoerysiphe galeopsidis, with moderate to high support: a "true" clade on Lamium, Galeopsis, etc.; a European Stachys-infecting clade; and an American Stachys-infecting clade.[3]

References

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  1. ^ Braun, Uwe; Cook, Roger T. A. (2012). Taxonomic manual of the Erysiphales (powdery mildews). CBS biodiversity series. Utrecht: CBS-KNAW fungal biodiversity centre. ISBN 978-90-70351-89-2.
  2. ^ Braun, Uwe (1999). "Some critical notes on the classification and the generic concept of the Erysiphaceae" (PDF). Schlechtendalia. 3: 50.
  3. ^ Bradshaw, Michael J.; Braun, Uwe; Götz, Monika; Pfister, Donald H. (2022-11-02). "Phylogeny and taxonomy of the genera of Erysiphaceae, part 2: Neoerysiphe". Mycologia. 114 (6): 994–1007. doi:10.1080/00275514.2022.2115420. ISSN 0027-5514.