Cortinarius orixanthus Soop 2008
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Cortinarius orixanthus Soop in Gasparini & Soop, Australas. Mycol. 27 177 (2008)
Cortinarius orixanthus Soop 2008
Biostatus
Nomenclature
Soop
Soop
2008
177
ICN
Cortinarius orixanthus Soop 2008
NZ holotype (PDD 88253)
species
Cortinarius orixanthus
Classification
Associations
Descriptions
Cortinarius orixanthus Soop 2008
Cap 20-60 mm, viscid, hygrophanous, sometimes weakly; warmly yellow-brown with a faint orange tinge, disk darker, slightly red-brown, young with a thin yellow frost; glabrous to innate fibrillose; margin greyish yellow with a conspicuous yellow rim, not striate. Gills yellow-grey. Stipe cylindrical to clavate, dry; dirty white to yellowish with sometimes thick yellow girdles on lower part, apex white. Veil yellow, fairly copious to sparse. Flesh yellow to yellow-brown, sometimes with a red-brown tinge; odour faintly raphanoid; taste nil or slightly fetid. Reactions: NaOH strongly yellow-orange to red on cutis and stipital veil, sometimes weaker; guayac green. Micro: spores elliptic, 6.5-8.2 × 4-5 μm, rather weakly verrucose.
In Nothofagus forest, fairly common.
The species may look like a Telamonia when small or in dry conditions, has been shown by molecular markers to belong to section Icterinula, which is mostly composed of dermocyboid species. It can be recognised by a remarkable yellow rim on the cap, often paired by yellow veil girdles on the stipe. Cf. C. viscoviridis, which also presents a yellow rim, but whose stipe is glutinous.
Taxonomic concepts
Global name resources
Collections
Notes
typification
Holotypus hic designatus PDD 88253: Nova Zelandia [New Zealand], Te Anau, Totara Rest Area, in silvis cum Nothofagete, 23rd April 2006, K. Soop.
Metadata
3ac9381f-faeb-49a2-bb45-461b4417c992
scientific name
Names_Fungi
21 March 2007
11 November 2020