Chrysomyxa rhododendri de Bary 1879

Caption:

Details

Name scientific

Chrysomyxa rhododendri de Bary, Bot. Zeitung (Berlin) 37 809 (1879)

Preferred name

Chrysomyxa rhododendri de Bary 1879

Taxonomy reference

Chalkley, D. Invasive Fungi. Northern spruce-rhododendron rust -Chrysomyxa rhododendri. https://nt.ars-grin.gov/taxadescriptions/factsheets/index.cfm?thisapp=Chrysomyxarhododendri

Biostatus

Origin

Occurrence

Georegion

Schema

Biostatus source

Comment

Present

New Zealand

Political Region

Nomenclature

Authors

de Bary

Original authors

de Bary

Publication place

de Bary, H.A. 1879: Aecidium abietinum. Botanische Zeitung 37: 761-774, 777-789, 801-811, 825-830, 841-847.

Year published

1879

Publication page

809

Nomenclatural code

ICN

Basionym

Chrysomyxa rhododendri de Bary 1879

Taxonomic rank

species

Canonical form

Chrysomyxa rhododendri

Classification

Kingdom

Fungi

Phylum

Basidiomycota

Class

Pucciniomycetes

Order

Pucciniales

Family

Coleosporiaceae

Genus

Chrysomyxa

Species

rhododendri

Associations

View full associations record

Association type

Associated organism

Association source

has host

Rhododendron

Cunningham, G.H. (1926)

has host

Rhododendron

Cunningham, G.H. (1931)

has host

Rhododendron

Dingley, J.M. (1969)

has host

Rhododendron

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

has host

Rhododendron

McKenzie, E.H.C. (1998)

has host

Rhododendron

Pennycook, S.R. (1989)

has host

Picea abies (L.) H.Karst.

PDD (2 records from [Not available].)

has host

Picea excelsa Link

PDD (1 records from [Not available].)

has host

Rhododendron

PDD (8 records from [Not available].)

has host

Rhododendron aureum Georgi

PDD (1 records from [Not available].)

has host

Rhododendron ferrugineum L.

PDD (2 records from [Not available].)

has host

Rhododendron micranthum

PDD (1 records from [Not available].)

Descriptions

Dingley, J.M. 1969: Records of plant diseases in New Zealand. New Zealand Department of Scientific and Industrial Research, Bulletin. 192.

Chrysomyxa rhododendri de Bary 1879

Pathogenicity

Rust on rhododendron was recorded by Cunningham from material collected at Stratford, Taranaki, in 1924. In the herbarium, Plant Diseases Division, there are only two other records, i.e., from Palmerston North in 1954 and New Plymouth, Taranaki, in 1961. At present it is of no economic importance.

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.

Chrysomyxa rhododendri de Bary 1879

Description

Type: Rust and Smut Fungi; Description: Uredinia scattered in groups or solitary, circular or irregular, orange yellow, 0.2–0.5 mm in diameter; on the lower surfaces of leaves, in discoloured spots which are also visible on the upper surfaces. Urediniospores in chains, elliptical or subglobose, 18–26 × 15–21 μm, delicately verruculose.

Distribution

Distribution: Auckland, Bay of Plenty, Taranaki, Wanganui, Wellington, Mid Canterbury.; 1st Record: Cunningham (1926).

Notes

Notes: From a detailed study of the Chrysomyxa ledi complex in North America and Europe, Crane (2001) concluded that Chrysomyxa rhododendri should be reinstated as a separate species, not a variety of Chrysomyxa ledi.

Pathogenicity

Significance: The rust has limited distribution and causes little damage.; Host(s): Rhododendron sp.