• Proposed
  • Under Assessment
  • VUPreliminary Assessed
  • 4Assessed
  • 5Published

Rozites colombiana Halling & Ovrebo

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Scientific name
Rozites colombiana
Halling & Ovrebo
Common names
IUCN Specialist Group
Mushroom, Bracket and Puffball
Assessment status
Preliminary Assessed
Preliminary Category
Proposed by
TEHO Group
TEHO Group
TEHO Group
Comments etc.
Thomas Læssøe, Anders Dahlberg, Roy Halling

Assessment Notes

Taxonomic notes

Rozites colombiana Halling and Ovrebo, sp.
nov.  Mycologia, 79(5), 1987, pp.  674-678.
Cortinarius colombianus (Halling & Ovrebo) Peintner, E. Horak, M.M. Moser & Vilgalys, Mycotaxon 83: 449 (2002)

Why suggested for a Global Red List Assessment?

This distinctive mushroom species appears to have narrow distribution and has so far been found only in Colombia and Costa Rica in an ectomicorrhizal association with Quercus. In Colombia Q. humboldtii is considered as VU according to the national red list. Personal observation for near 28 year of the population of Rozites colombiana in both countries, showed that it is declining.
Because host and the fungus population are declining, Rozites colombiana is considered VU A2C

Geographic range

So far only known from Colombia and Costa Rica with an ectomicorrhizal association with different species of Quercus.

Population and Trends

Since Rozites colombiana is an ectomycorrhizal fungus associated with Quercus humboldtii, its population is most likely declining due to this plant’s VU status, according to national red list, and to its limited distribution. Q. humboldtii is endemic to Andean highlands, and grows from 1000 to 3200 m elevation. Montane forests in Colombia are also very threatened due to deforestation and mining, so it would be reasonable to believe that R. colombiana populations are declining as it has been observed for near 28 year. According to Rangel (2005) 60% of colombian Quercus forest have rapidly dissapeared.

Population Trend: Uncertain

Habitat and Ecology

Ectomycorrhizal with Quercus humboldtii. 2500 m elevation, scattered to gregarious on soil under Quercus humboldtii in oak forests.

Subtropical/Tropical Moist Montane Forest


Rapid loss and fragmentation of hábitat by deforestation and mining activities

Shifting agricultureAgro-industry farmingLivestock farming & ranchingLogging & wood harvestingWar, civil unrest & military exercises

Conservation Actions

No conservation actions are currently in place. Protection of its habitat is needed

Research needed

Field work to documented de Biology and Ecology of the species is needed.

Population size, distribution & trendsLife history & ecologyThreatsConservation PlanningMonitoring

Use and Trade


Halling, Roy E. & Ovrebo, Clark L. 1987. A New Species of Rozites from Oak Forests of Colombia, with Notes on Biogeography. Mycologia 79(5): 674-678.
Armenteras, D., Villareal, F. & Gast, H. 2003. Andean forest fragmentation and the representativeness of protected natural areas in the eastern Andes, Colombia. Biological Conservation 113 (2003) 245–256.
Franco-Molano Ana Esperanza. Aldana-Gómez, Ruth. & Halling, Roy E. 2000. Setas de Colombia (Agaricales, Boletales y otros hongos). Colciencias - Universidad de Antioquia
Red List (Quercus humboldtii). https://senaintro.blackboard.com/bbcswebdav/users/1130585219/LibroRojoMaderables.pdf
Cárdenas L., D. & N. Salinas. 2006. Libro rojo de plantas de Colombia: Especies maderables amenazadas. Instituto Amazónico de Investigaciones Biológicas – SINCHI-, Bogotá, Colombia
Avella M., A. Rangel.Ch. J.O., 2014. Oak forest: conservation and sustainability. Colombia Forestal 17 (4): 100-117
González, C.E, Jarvis A and J.D. Palacio. 2006. Biogeography of the Colombian oak, Quercus humboldtii Bonpl: geographical distribution and their climatic adaptation.Bogotá, CO. [p. 1-10].

Country occurrence

Regional Population and Trends

Country Trend Redlisted