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Melampsora medusae Thüm. 1878

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Melampsora medusae Thüm., Bull. Torrey Bot. Club 6 216 (1878)
Melampsora medusae Thüm. 1878
McKenzie, E.H.C. 1998: Rust fungi of New Zealand - an introduction, and list of recorded species. New Zealand Journal of Botany 36(2): 233-271.

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Exotic
Present
New Zealand
Political Region
Anon

Click to collapse Nomenclature Info

Thüm.
Thüm.
Thümen, F.K.A.E.J. von 1878: New species of North American Uredinei. Bulletin of the Torrey Botanical Club 6: 215-216.
1878
216
ICN
Melampsora medusae Thüm. 1878
species
Melampsora medusae

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Fungi
Basidiomycota
Pucciniomycetes
Pucciniales
Melampsoraceae
Melampsora
medusae

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Associations View full associations record
has host
Populus ×canadensis Moench
Anonymous (1973)
has host
Larix ×eurolepis A.Henry
Bulloch, B.T. (1986)
has host
Larix decidua Mill.
Gadgil, P.D. (in association with Dick, M.A.; Hood, I.A.; Pennycook, S.R.) (2005)
has host
Larix decidua Mill.
McKenzie, E.H.C. (1998)
has host
Larix decidua Mill.
Pennycook, S.R. (1989)
has host
Populus
Ridley, G.S.; Dick, M.A. (2001)
has host
Populus ×canadensis Moench
Spiers, A.G.
has host
Larix decidua Mill.
Spiers, A.G. (1975)
has host
Populus ×canadensis Moench
Spiers, A.G. (1998)
has host
Populus ×canadensis Moench
Spiers, A.G.; Hopcroft, D.H. (1990)
has host
Populus ×canadensis Moench
Spiers, A.G.; Hopcroft, D.H. (1994)
has host
Populus ×canadensis Moench
van Kraayenoord, C.W.S.; Laundon, G.F.; Spiers, A.G. (1974)
has host
Populus ×canadensis Moench
van Kraayenoord, C.W.S.; Wilkinson, A.G. (1986)
has host
Populus deltoides × maximowiczii
Wilkinson, A.G. (1986)
has host
Populus ×canadensis Moench
Wilkinson, A.G. (1986)
has host
Populus ×canadensis Moench
Wilkinson, A.G. (1986)
has host
Populus ×canadensis Moench
Wilkinson, A.G. (1986)
has host
Populus trichocarpa Hook.
Wilkinson, A.G. (1986)
has host
Populus yunnanensis Dode
Wilkinson, A.G. (1986)
has host
Larix laricina (Du Roi) K.Koch
PDD (1 records from [Not available].) Link to an external page
has host
Populus
PDD (48 records from [Not available].) Link to an external page
has host
Populus ×euramericana (Dode) Guinier
PDD (2 records from [Not available].) Link to an external page
has host
Populus ×robusta C.K. Schneid.
PDD (1 records from [Not available].) Link to an external page
has host
Populus balsamifera L. 1753
PDD (1 records from [Not available].) Link to an external page
has host
Populus deltoides Marshall
PDD (24 records from [Not available].) Link to an external page
has host
Populus laevigata Aiton
PDD (1 records from [Not available].) Link to an external page
has host
Populus sargentii Dode
PDD (1 records from [Not available].) Link to an external page
has host
Populus simonii Carrière
PDD (1 records from [Not available].) Link to an external page
has host
Populus szechuanica C.K.Schneid.
PDD (1 records from [Not available].) Link to an external page
has host
Populus tremuloides Michx.
PDD (5 records from [Not available].) Link to an external page
has host
Populus trichocarpa Hook.
PDD (1 records from [Not available].) Link to an external page
has host
Populus yunnanensis Dode
PDD (1 records from [Not available].) Link to an external page
has host
Pseudotsuga taxifolia (Lamb.) Britton 1889
PDD (1 records from [Not available].) Link to an external page
is host of
Eudarluca caricis (Fr.) O.E. Erikss. 1966
PDD (1 records from [Not available].) Link to an external page

Click to collapse Descriptions Info

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.

Melampsora medusae Thüm. 1878

Type: Rust and Smut Fungi; Description: Spermagonia solitary to aggregated in small groups, circular to lenticular, pale yellow, up to 0.2 mm in diameter, surrounded by a halo of yellow tissue; on needles. Aecia aggregated in groups of two to four, irregularly oval, yellow-orange, 0.5–1 mm in diameter; on yellow spots on needles. Uredinia single or aggregated in groups, circular, bright orange-yellow, 0.5–1 mm in diameter; on both sides of leaves. Urediniospores obovate to oval, apex rounded, base truncate, 22–35 × 15–25 μm, uniformly echinulate except for a smooth equatorial area commonly extending half to three-quarters around the spore. Telia occasionally single but more often aggregated in groups which coalesce, circular, amber brown to dark brown, up to 1 mm in diameter; on both sides of leaves. Teliospores cylindrical to triangular, 20–50 × 6–16 μm, pale.
Distribution: Northland, Auckland, Coromandel, Waikato, Bay of Plenty, Taupo, Gisborne.; 1st Record: Anonymous (1973); van Kraayenoord et al. (1974).
Significance: M. larici-populina and M. medusae were first recorded in New Zealand in 1973. M. medusae was associated with M. larici-populina in the early outbreaks, but appeared to be restricted to isolated trees of Populus deltoides. By 1984, M. medusae had apparently died out but it has been occasionally recorded since then (Spiers 1998). It is not possible to distinguish damage caused by M. medusae from that caused by M. larici-populina in the field. An interspecific hybrid between M. larici-populina and M. medusae has been described (Spiers & Hopcroft 1994).; Host(s): Spermagonia and aecia on Larix decidua. Uredinia and telia on Populus ×canadensis, P. deltoides, P. deltoides var. missouriensis, P. maximowiczii × berolinensis, P. maximowiczii × nigra, P. maximowiczii × trichocarpa, P. simonii, P. yunnanensis.

Click to collapse Taxonomic concepts Info

Melampsora albertensis Arthur 1906
Melampsora albertensis Arthur (1906)
Arthur, J.C. (1906)
Melampsora medusae Thüm. 1878
Melampsora medusae Thüm. (1878)
Anonymous (1973)
Melampsora medusae Thüm. 1878
Melampsora medusae Thüm. (1878)
Bulloch, B.T. (1986)
Melampsora medusae Thüm. 1878
Melampsora medusae Thüm. (1878)
Dingley, J.M. (1977)
Melampsora medusae Thüm. 1878
Melampsora medusae Thüm. (1878)
Gadgil, P.D. (in association with Dick, M.A.; Hood, I.A.; Pennycook, S.R.) (2005)
Melampsora medusae Thüm. 1878
Melampsora medusae Thüm. (1878)
McKenzie, E.H.C. (1998)
Melampsora medusae Thüm. 1878
Melampsora medusae Thüm. 1878
Melampsora medusae Thüm. (1878)
Pennycook, S.R. (1989)
Melampsora medusae Thüm. 1878
Melampsora medusae Thüm. (1878)
Pennycook, S.R.; Galloway, D.J. (2004)
Melampsora medusae Thüm. 1878
Melampsora medusae Thüm. (1878)
Ridley, G.S.; Dick, M.A. (2001)
Melampsora medusae Thüm. 1878
Melampsora medusae Thüm. (1878)
Spiers, A.G.
Melampsora medusae Thüm. 1878
Melampsora medusae Thüm. (1878)
Spiers, A.G. (1975)
Melampsora medusae Thüm. 1878
Melampsora medusae Thüm. (1878)
Spiers, A.G. (1998)
Melampsora medusae Thüm. 1878
Melampsora medusae Thüm. (1878)
Spiers, A.G.; Hopcroft, D.H. (1990)
Melampsora medusae Thüm. 1878
Melampsora medusae Thüm. (1878)
Spiers, A.G.; Hopcroft, D.H. (1994)
Melampsora medusae Thüm. 1878
Melampsora medusae Thüm. (1878)
Thümen, F.K.A.E.J. von (1878)
Melampsora medusae Thüm. 1878
Melampsora medusae Thüm. (1878)
van Kraayenoord, C.W.S.; Laundon, G.F.; Spiers, A.G. (1974)
Melampsora medusae Thüm. 1878
Melampsora medusae Thüm. (1878)
van Kraayenoord, C.W.S.; Wilkinson, A.G. (1986)
Melampsora medusae Thüm. 1878
Melampsora medusae Thüm. (1878)
Wilkinson, A.G. (1986)
Melampsora medusae Thüm. 1878
Melampsora medusae Thüm. (1878)
Wilkinson, A.G. (1986)
Melampsora medusae Thüm. 1878
Melampsora medusae Thüm. (1878)
Wilkinson, A.G. (1986)
Melampsora medusae Thüm. 1878
Melampsora medusae Thüm. (1878)
Wilkinson, A.G. (1986)
Melampsora medusae Thüm. 1878
Melampsora medusae Thüm. (1878)
Wilkinson, A.G. (1986)
Melampsora medusae Thüm. 1878
Melampsora medusae Thüm. (1878)
Wilkinson, A.G. (1986)
Melampsora medusae Thüm. 1878
Melampsora medusae Thüm.
Ziller, W.G. (1974)

Click to collapse Collections Info

Melampsora albertensis Arthur 1906
[Not available]
4 Link to an external page
Melampsora medusae Thüm. 1878
[Not available]
87 Link to an external page

Click to collapse Metadata Info

1cb1925e-36b9-11d5-9548-00d0592d548c
scientific name
Names_Fungi
10 February 1998
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