Pseudoidium hortensiae (Jørst.) U. Braun & R.T.A. Cook 2012

Caption:

Details

Name scientific

Pseudoidium hortensiae (Jørst.) U. Braun & R.T.A. Cook (2012)

Preferred name

Pseudoidium hortensiae (Jørst.) U. Braun & R.T.A. Cook 2012

Taxonomy reference

Braun, U.; Cook, R.T.A. 2012: Taxonomic Manual of the Erysiphales (Powdery Mildews). CBS Biodiversity Series. 11. 707 p.

Biostatus

Origin

Occurrence

Georegion

Schema

Biostatus source

Comment

Exotic

Present

New Zealand

Political Region

Nomenclature

Authors

(Jørst.) U. Braun & R.T.A. Cook

Original authors

Jørst.

Combination authors

U. Braun & R.T.A. Cook

Year published

2012

Publication page

606

Nomenclatural code

ICN

Basionym

Oidium hortensiae Jørst. 1926

Taxonomic rank

species

Canonical form

Pseudoidium hortensiae

Classification

Kingdom

Fungi

Phylum

Ascomycota

Class

Leotiomycetes

Order

Helotiales

Family

Erysiphaceae

Genus

Pseudoidium

Species

hortensiae

Synonyms

Associations

View full associations record

Association type

Associated organism

Association source

has host

Acanthus mollis L.

Amano, K. (1986)

has host

Acanthus mollis L.

Boesewinkel, H.J. (1977)

has host

Acanthus mollis L.

Boesewinkel, H.J. (1979)

has host

Acanthus mollis L.

Boesewinkel, H.J. (1980)

has host

Hydrangea macrophylla (Thunb.) Ser.

Brien, R.M.; Dingley, J.M. (1951)

has host

Hydrangea macrophylla (Thunb.) Ser.

Dingley, J.M. (1969)

has host

Hydrangea macrophylla (Thunb.) Ser.

Gadgil, P.D. (in association with Dick, M.A.; Hood, I.A.; Pennycook, S.R.) (2005)

has host

Hydrangea macrophylla (Thunb.) Ser.

Hammett, K.R.W. (1978)

has host

Acanthus mollis L.

Pennycook, S.R. (1989)

has host

Hydrangea

PDD (2 records from New Zealand.)

has host

Hydrangea hortensis Sm.

PDD (6 records from New Zealand.)

has host

Hydrangea macrophylla (Thunb.) Ser.

PDD (1 records from New Zealand.)

Descriptions

Gadgil, P.D. (in association with Dick, M.A.; Hood, I.A.; Pennycook, S.R.) 2005: Fungi on trees and shrubs in New Zealand. Fungi of New Zealand. 4. Fungal Diversity Press.

Oidium hortensiae Jørst. 1926

Description

Type: Powdery Mildews; Description: Mycelium superficial, evanescent or dense, white, hyphae 5–7 μm wide; on leaves, stems, and flowers. Appressoria multi-lobed. Conidiophores 70–90 × 7–9 μm, foot cell straight. Conidia produced singly, oval or elliptical, 0-septate, 28–45 × 14–20 μm, smooth, hyaline.

Distribution

Distribution: Auckland.; 1st Record: Boesewinkel (1977a).

Notes

Notes: Oidium is one of the anamorphic genera that include members of the Erysiphaceae for which no teleomorph is known.

Pathogenicity

Significance: None.; Host(s): Hydrangea macrophylla.