| Bartheletia | |
|---|---|
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| Closeup view | |
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| Macroscopic view | |
Scientific classification | |
| Domain: | Eukaryota |
| Kingdom: | Fungi |
| Division: | Basidiomycota |
| Subdivision: | Agaricomycotina |
| Class: | Bartheletiomycetes Thines (2017)[3] |
| Order: | Bartheletiales Thines (2017) |
| Family: | Bartheletiaceae R.Bauer, Scheuer, M.Lutz & Grube (2008) |
| Genus: | Bartheletia G.Arnaud ex Scheuer, R.Bauer, M.Lutz, Stabenth., Melnik & Grube (2008) |
| Species: | B. paradoxa |
| Binomial name | |
| Bartheletia paradoxa | |
Bartheletia paradoxa is a species ofdimorphic fungus and is theonly member of thegenusBartheletia.Bartheletia is the only genus in thefamilyBartheletiaceae, which is the only family inBartheletiales, which in turn is the onlyorder in the classBartheletiomycetes.[4][5]
Sorus-likesporodochia form on freshly fallen leaves and petioles ofGinkgo biloba in early autumn in Asia and Europe and persist through the winter. They produce slimy, hyaline, single-celled, cylindricalconidia. Thick-walled, dark brownteliospores develop in leaf tissue, clustered in structures about 1 mm diameter, similar to telia ofrust fungi, causing black leaf spots surrounded by a gray halo. After a year of dormancy, long-stalkedbasidia emerge through an apical channel from each teliospore, becoming round, cruciately-septate, and producing a succession of cylindrical basidiospores from four wart-like loci.[2]
Cultures can be isolated from discharged basidiospores or conidia spread on standard agar media.[2]
Like itshostG. biloba,B. paradoxa has no closely related (living) relatives and is considered a "living fossil".[2]
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