Cortinarius archeri
| Cortinarius archeri | |
|---|---|
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| Scientific classification | |
| Kingdom: | Fungi |
| Division: | Basidiomycota |
| Class: | Agaricomycetes |
| Order: | Agaricales |
| Family: | Cortinariaceae |
| Genus: | Cortinarius |
| Species: | C. archeri |
| Binomial name | |
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Cortinarius archeri Berk. (1860) |
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| Synonyms | |
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Gomphos archeri (Berk.) Kuntze (1891) |
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Gomphos archeri (Berk.) Kuntze (1891)
Myxacium archeri (Berk.) Y.S.Chang & Kantvilas (1993)
Cortinarius archeri is a species of mushroom in the genus Cortinarius native to Australia. The distinctive mushrooms have bright purple caps that glisten with slime, and appear in autumn in eucalypt forests.
English clergyman Miles Joseph Berkeley described Cortinarius archeri in 1860 from a specimen collected in Cheshunt, Tasmania in April 1856. The species name honours the collector—naturalist William Archer, who was the secretary of the Royal Society of Tasmania.
In 1891, the German botanist Otto Kuntze published Revisio generum plantarum, his response to what he perceived as poor method in existing nomenclatural practice. He called the species Gomphos archeri, citing the genus Gomphos as described by Giovanni Antonio Battarra in 1755 taking precedence over Cortinarius. However, Kuntze's revisionary programme was not accepted by the majority of botanists.
Within the genus, Cortinarius archeri belongs to the subgenus Myxacium, whose mushroom caps and stipes are covered with a layer of glutinous slime. Moser and Horak made it the type species of Cortinarius (Myx.) section Archeriani in 1975. In 1990, Egon Horak placed it in group D of the subgenus, several species with mushrooms that are purple or blue when young. In 2007, Italian mycologist Bruno Gasparini placed C. archeri and the Archeriani (which he reclassified as a subsection) into the subgenus Phlegmacium, which have sticky or glutinous caps but not stipes. He conceded the subgenera as classically understood were likely to be untenable and require overhauling. In 2004, Peintner and colleagues placed the Archeri group in a clade they named /Delibuti, which was related to the Phlegmacium clade, though C. archeri was not itself sampled in this genetic study. A 2005 molecular study of the genus by Sigisfredo Garnica and colleagues was unable to place C. archeri in a clade with confidence, though showed its affinity with C. sinapicolor.
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