Cystotheca
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Cystotheca is a genus of plant pathogenic fungi in the family Erysiphaceae (powdery mildews). Members of the genus are found on Calophyllum, Castanea, Castanopsis, Murraya and Quercus species in Asia and North America.
Description
Many Cystotheca species form dense, white or brown, distorting patches on the leaves of their hosts. Some species in this genus are also known to cause witch's-broom galls.[1] The distribution of this genus is limited to Asia (from the Himalayas to Indonesia and Japan) and North America (western United States to southern Central America). Only Cystotheca lanestris and Cystotheca mexicana are not found in Asia.[1]
Taxonomy
The genus was once considered conspecific with Sphaerotheca, but Cystotheca is well-distinguished by the presence of special aerial hyphae (with the exception of one species) and the chasmothecial wall being separated into two distinct layers. Cystotheca is phylogenetically close to Podosphaera.[2]
Species
The genus comprises the following species:[1][2]
- Cystotheca castanopsidis Template:Au
- Cystotheca esetacea Template:Au
- Cystotheca indica Template:Au
- Cystotheca kusanoi Template:Au
- Cystotheca lanestris Template:Au
- Cystotheca mexicana Template:Au
- Cystotheca nanyuensis Template:Au
- Cystotheca quercina Template:Au
- Cystotheca tjibodensis Template:Au
- Cystotheca vignae Template:Au
- Cystotheca wrightii Template:Au
- Setoidium murrayae Template:Au
References
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- ^ a b c Page Module:Citation/CS1/styles.css has no content.Bradshaw, Michael; Braun, Uwe; Quijada, Luis; Coombes, Allen J.; Contreras-Paredes, Carlos; Pfister, Donald H. (2023-05-04). "Phylogeny and taxonomy of the genera of Erysiphaceae, part 3: Cystotheca". Mycologia. 115 (3): 427–436. doi:10.1080/00275514.2023.2194172. ISSN 0027-5514. PMID 37159342.
- ^ a b Page Module:Citation/CS1/styles.css has no content.Braun, Uwe; Cook, Roger T. A. (2012). Taxonomic manual of the Erysiphales (powdery mildews). CBS biodiversity series. Utrecht: CBS-KNAW fungal biodiversity centre. ISBN 978-90-70351-89-2.
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