Notes on Three South African Rusts

Thirumalachar, M. J.

doi:10.2307/2481544

Cited by 7 publications

(5 citation statements)

References 2 publications

(4 reference statements)

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“…On Grewia spp., Africa, India, Pakistan, Australia. The Australian collections agree closely with the descriptions of the rust given by Sydow (1923-1924), Cummins (1945) and Thirumalachar (1946). Infected leaves show yellow to pale brown blotches 2-3 cm across corresponding to the sori on the lower leaf surface.…”

Section: Resultssupporting

confidence: 87%

“…6). Thirumalachar (1946) examined a specimen of rust on Grewia monticola Sond. sent to him from South Africa as suspected Ravenelia atrides Syd.…”

Section: Resultsmentioning

confidence: 99%

“…and G. monticola Sond. in South Africa (Doidge 1926;Thirumalachar 1946;Viennot-Bourgin 1953). In Asia, it occurs on G. abutifolia Vent.…”

Section: Holotypus Hic Designatus: In Foliismentioning

confidence: 99%

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Uredopeltis chevalieri sp. nov., the rust of Grewia (Tiliaceae) formerly known as Phakopsora (or Dasturella) grewiae, its first record in Australia and a summary of the known rusts of Grewia

Walker¹,

Shivas

2004

Austral. Plant Pathol.

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Uredopeltis chevalieri sp. nov., the rust of Grewia (Tiliaceae) formerly known as Phakopsora (or Dasturella) grewiae, its first record in Australia and a summary of the known rusts of Grewia Abstract. The rust of Grewia formerly known as Phakopsora (or Dasturella) grewiae is recorded for the first time in Australia from the Kimberley region of northern Western Australia. As no validly published name exists for the telial stage of this rust and as it is placed best in the genus Uredopeltis, it is described as new from the Australian collection as Uredopeltis chevalieri and is compared with the other known rusts of Grewia.A P 0 3 0 8 1 R u s t s o n G r e w i a J . Wa l k e r a n d R . G . S h i v a s

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Section: Resultssupporting

confidence: 87%

“…6). Thirumalachar (1946) examined a specimen of rust on Grewia monticola Sond. sent to him from South Africa as suspected Ravenelia atrides Syd.…”

Section: Resultsmentioning

confidence: 99%

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Uredopeltis chevalieri sp. nov., the rust of Grewia (Tiliaceae) formerly known as Phakopsora (or Dasturella) grewiae, its first record in Australia and a summary of the known rusts of Grewia

Walker¹,

Shivas

2004

Austral. Plant Pathol.

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“…Due to changes in political borders, two species each now only occur in Mozambique (R. deformans and R. le-testui) and Zimbabwe (R. indigoferae and R. bottomleyae) respectively, while R. baumiana was recorded only from Angola. Two rusts, R. atrides and R. bottomleyae, were transferred to the genera Uredopeltis (Wood 2007) and Spumula (Thirumalachar 1946), respectively. Wood (2006) recorded R. ornata for the first time in South Africa and During the course of recent surveys, aiming at recollecting the majority of Ravenelia species from South Africa and especially at investigating all known Acacia s.l.…”

Section: Introductionmentioning

confidence: 99%

The genus Ravenelia (Pucciniales) in South Africa

et al. 2020

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The genus Ravenelia represents the third largest genus of rust fungi and parasitizes a great number of leguminous shrubs and trees, mainly in the subtropics and tropics. Molecular phylogenetic analyses of this genus using nc 28S rDNA and CO3 sequences are presented with a special focus on South African representatives of Ravenelia. Many of the specimens had been collected by us in recent years, mainly from acacia species of the genera Vachellia and Senegalia. Morphological characters were extensively studied using light microscopy and scanning electron microscopy. The analyses resolved several well-supported phylogenetic groups. By linking these groups to their morphology and life cycle characteristics, it was possible to interpret the outcomes in terms of their evolutionary ecology and biogeography. Several characters previously used to define subgeneric groups within Ravenelia were found to be misleading because of assumed convergent evolution. However, host associations, the ability to induce aecial galls as well as the development of two-layered probasidial cells emerged as useful criteria for inferring monophyletic groups. Six novel Ravenelia species were discovered and described. Furthermore, five species represent new reports for South Africa, species descriptions were emended for two taxa, and a new host report emerged for R. inornata. Keywords Pucciniales. Raveneliaceae. Ravenelia moloto sp. nov.. Ravenelia molopa sp. nov.. Ravenelia modjadji sp. nov. Ravenelia doidgeae sp. nov.. Ravenelia spinifera sp. nov.. Ravenelia dumeti sp. nov.. Phylogeny. Diversity study This article is part of the topical collection on Basidiomycote Mycology in honor of Franz Oberwinkler who passed away in March 2018

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“…Thirum. (PREM 32401, on G. monticola) (Thirumalachar 1946). This same species had been described by Cummins (1945) as Phakopsora grewiae (Pat.…”

Section: Introductionmentioning

confidence: 99%

Rust fungi (Uredinales) on Grewia species (Tilliaceae) in South Africa, with Uredopeltis atrides comb. nov. the new name for Ravenelia atrides

Wood¹

2007

Mycol Progress

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The holdings of rust fungi on Grewia species (Tiliaceae) housed in the South African National Collection of Fungi (PREM) were examined. They belong to three morphologically similar, but clearly separable, species of Uredopeltis, and a species of Uredo. Each rust species has a distinct and restricted host range. Ravenelia atrides is a species of Uredopeltis and is transferred accordingly. Several specimens previously accessioned under R. atrides however belong to U. chevalieri. The specimens previously accessioned under Uredo grewiae belong to U. flava, and not U. chevalieri. Three specimens are best placed in Uredo corbiculoides.

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Notes on Three South African Rusts

Cited by 7 publications

References 2 publications

Uredopeltis chevalieri sp. nov., the rust of Grewia (Tiliaceae) formerly known as Phakopsora (or Dasturella) grewiae, its first record in Australia and a summary of the known rusts of Grewia

Uredopeltis chevalieri sp. nov., the rust of Grewia (Tiliaceae) formerly known as Phakopsora (or Dasturella) grewiae, its first record in Australia and a summary of the known rusts of Grewia

The genus Ravenelia (Pucciniales) in South Africa

Rust fungi (Uredinales) on Grewia species (Tilliaceae) in South Africa, with Uredopeltis atrides comb. nov. the new name for Ravenelia atrides

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