Imperator rhodopurpureus

Imperator rhodopurpureus is an inedible fungus of the genus Imperator, found under deciduous trees including oak and beech in neutral soils.[1] Initially described as Boletus rhodopurpureus, it was transferred to the new genus Imperator in 2015.[2] The bolete is considered critically endangered in the Czech Republic.[3]

Imperator rhodopurpureus
Scientific classification
Kingdom: Fungi
Division: Basidiomycota
Class: Agaricomycetes
Order: Boletales
Family: Boletaceae
Genus: Imperator
Species:
I. rhodopurpureus
Binomial name
Imperator rhodopurpureus
(Smotl.) Assyov, Bellanger, Bertéa, Courtec., Koller, Loizides, G. Marques, J.A.Muñoz, N.Oppicelli, D.Puddu, F.Rich. & P.-A. Moreau (2015)
Synonyms
  • Boletus rhodopurpureus Smotl. (1952)

Description

The cap is cushion-like, up to 15 cm in diameter; faint yellow- or pink-buff when young, later flushing red from the rim and becoming blotched with yellow, red and olivaceous tones. The tubes are orange or red at first, then turning dark blue when cut. The spores are olive-brown. The stem is rather short, and sometimes very bulbous. The flesh is pale yellow, turning blue when cut. [4]

Similar species

In the warmest regions of central and southern Europe the blood red-capped Rubroboletus dupainii.

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References
  • E. Garnweidner. Mushrooms and Toadstools of Britain and Europe. Collins. 1994.
  1. Kibby, G. 2011. British boletes with keys to species.Kibby, G. 2011. British boletes with keys to species
  2. Assyov B, Bellanger JM, Bertéa P, Courtecuisse R, Koller G, Loizides M, Marques G, Muñoz JA, Oppicelli N, Puddu D, Richard F, Moreau PA (May 21, 2015). "Nomenclatural novelties". Index Fungorum (243).
  3. Mikšik M. (2012). "Rare and protected species of boletes of the Czech Republic". Field Mycology. 13 (1): 8–16. doi:10.1016/j.fldmyc.2011.12.003.
  4. Kibby, G. 2011. British boletes with keys to species
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