Mycosphaerella metrosideri F. Stevens & P.A. Young 1925
![Leaf spots. Creator: P.R. Johnston. © Landcare Research. [Image: YUF]](https://data.landcareresearch.co.nz/Image/YUF/SysPortalThumb)
![Deatil of perithecia, in groups in leaf spots. Creator: P.R. Johnston. © Landcare Research. [Image: YUG]](https://data.landcareresearch.co.nz/Image/YUG/SysPortalThumb)
![possible hyperparasite, vibile within one of the leaf spots, hyphomycetous hyphae emerging from putative perithecia. Creator: P.R. Johnston. © Landcare Research. [Image: YUH]](https://data.landcareresearch.co.nz/Image/YUH/SysPortalThumb)
![Deatil of perithecia, in groups in leaf spots. Creator: P.R. Johnston. © Landcare Research. [Image: YUI]](https://data.landcareresearch.co.nz/Image/YUI/SysPortalThumb)
![germinating ascospore on agar. Creator: P.R. Johnston. © Landcare Research. [Image: YUJ]](https://data.landcareresearch.co.nz/Image/YUJ/SysPortalThumb)
![Leaf spots. Creator: P.R. Johnston. © Landcare Research. [Image: YUF]](https://data.landcareresearch.co.nz/Image/YUF/SysPortalPreview)
![Deatil of perithecia, in groups in leaf spots. Creator: P.R. Johnston. © Landcare Research. [Image: YUG]](https://data.landcareresearch.co.nz/Image/YUG/SysPortalPreview)
![possible hyperparasite, vibile within one of the leaf spots, hyphomycetous hyphae emerging from putative perithecia. Creator: P.R. Johnston. © Landcare Research. [Image: YUH]](https://data.landcareresearch.co.nz/Image/YUH/SysPortalPreview)
![Deatil of perithecia, in groups in leaf spots. Creator: P.R. Johnston. © Landcare Research. [Image: YUI]](https://data.landcareresearch.co.nz/Image/YUI/SysPortalPreview)
![germinating ascospore on agar. Creator: P.R. Johnston. © Landcare Research. [Image: YUJ]](https://data.landcareresearch.co.nz/Image/YUJ/SysPortalPreview)
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Details
Details
Mycosphaerella metrosideri F. Stevens & P.A. Young 1925
Mycosphaerella metrosideri F. Stevens & P.A. Young 1925
Biostatus
Indigenous, non-endemic
Present
New Zealand
Political Region
Whether the NZ fungus (or fungi) causing leaf spots on Metrosideros excelsa match the biologically similar fungus from the Hawaiian type locality is not known,. An ITS sequence from ICMP 19619 (ex leaf spot ex Metrosideros exclesa) in the genus Mycodiella
Nomenclature
F. Stevens & P.A. Young
F. Stevens & P.A. Young
1925
104
ICN
Mycosphaerella metrosideri F. Stevens & P.A. Young 1925
HI, USA
species
Mycosphaerella metrosideri
Classification
Associations
View full associations recordhas host
Descriptions
Mycosphaerella metrosideri F. Stevens & P.A. Young 1925
Type: Foliicolous Fungi; Description: Ascomata perithecial, in groups, immersed becoming erumpent, globose, black, up to 1 mm in diameter; in groups of 4–5 across the central part of distinct, round, leaf spots which are pale in the centre, with a broad, red brown, slightly-raised margin on the upper surfaces of leaves. Asci clavate, 40–55 × 18 μm. Ascospores ellipsoid, 1-septate, 20–25 × 3–6 μm, apex acute, base rounded, smooth, hyaline.
Distribution: Auckland.; 1st Record: McKenzie et al. (1999)
Significance: None.; Host(s): Metrosideros excelsa.
Mycosphaerella metrosideri F. Stevens & P.A. Young 1925
On living leaves of Metrosideros polymorpha. Oahu: Wahiawa, May 31, no. 159; Kahili Valley, June 2, no. 183; Olympus, June 24, no. 716; Hawaii: Kohala, July 2, 1919, Lyon no. 481.
Spots circular, 2-4 mm in diameter, centre white, margin raised, brown to black, surrounded by a brown, discolored area. Perithecia epiphyllous, 45-100 µ, immersed; ostiole distinct. Asci clavate, somethimes irregular and curved, 40-55 µ by 18 µ. Spores hyaline, 1-septate, 20-25 µ by 3-6 µ, tapering towards one end.
Taxonomic concepts
Mycosphaerella metrosideri F. Stevens & P.A. Young 1925
Mycosphaerella metrosideri F. Stevens & P.A. Young (1925)
Mycosphaerella metrosideri F. Stevens & P.A. Young 1925
Mycosphaerella metrosideri F. Stevens & P.A. Young (1925)
Mycosphaerella metrosideri F. Stevens & P.A. Young 1925
Mycosphaerella metrosideri F. Stevens & P.A. Young (1925)
Mycosphaerella metrosideri F. Stevens & P.A. Young 1925
Mycosphaerella metrosideri F. Stevens & P.A. Young (1925)
Mycosphaerella metrosideri F. Stevens & P.A. Young 1925
Mycosphaerella metrosideri F. Stevens & P.A. Young (1925)
Mycosphaerella metrosideri F. Stevens & P.A. Young 1925
Mycosphaerella metrosideri F. Stevens & P.A. Young
Global name resources
Collections
Metadata
1cb194ab-36b9-11d5-9548-00d0592d548c
scientific name
Names_Fungi
1 January 2001
18 October 2005
