Costa Rica Species
Hydnopolyporus fimbriatus
FungiHighest rank in taxonomy. Groups all life into domains: Animalia, Plantae, Fungi, etc.IUCN NEInternational Union for Conservation of Nature — the world authority on species extinction risk, using standardized criteria. — Not Evaluated — not yet assessed against the IUCN Red List criteria.In ProgressCurrent stage of this record in the editorial review workflow. Recent Sighting

Hydnopolyporus fimbriatus

Rosette Fungus

(Fr.) Ryvarden, 1972

Detailed Texts Multi-lang
Fungus that grows in dense circular rosettes resembling a flower or cabbage. The caps are thin, leathery, with deeply fimbriate (fringed or thin threads) margins. The color ranges from creamy white to pale cinnamon. The lower surface is smooth or slightly porous.

Added by

Anonymous Curator

Reviewed by

Under Review

Last modified by

Julia Trouin

Other Names (Global)Regional and multilingual names used for this species across different countries and languages.

Hongo repolloPolíporo fimbriadoFimbriate rosette fungus

TaxonomyBiological classification ranks placing this species within the tree of life, from Kingdom down to Genus.

PhylumRank below Kingdom. Groups organisms sharing a fundamental body plan (e.g., Chordata = vertebrates and some invertebrates).Basidiomycota
ClassRank below Phylum. Subdivides by structural traits (e.g., Mammalia, Aves, Reptilia, Insecta).Agaricomycetes
OrderRank below Class. Groups related families sharing common ancestry (e.g., Carnivora, Primates).Polyporales
FamilyRank below Order. Groups closely related genera (e.g., Felidae = cats, Canidae = dogs).Meripilaceae
GenusRank just above Species. The first word in the two-part binomial scientific name.Hydnopolyporus
Taxonomic AuthorityThe scientist who first formally described and published this species, followed by the year of publication.(Fr.) Ryvarden, 1972
Record Completeness
93%
Coming soon

Ecology & StatusHow this species lives: habitat preferences, diet, behavior, population status, and role in its ecosystem.

OriginWhether the species is native (evolved here), endemic (found only here), or introduced by human activity.

Native

Population TrendDirection of change in population size over time: increasing, stable, decreasing, or unknown.

Stable

Trophic RolePosition in the food chain: producer, herbivore, carnivore, omnivore, decomposer, or parasite.

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EdibilityWhether this mushroom is edible, toxic, hallucinogenic, or of unknown safety. Never eat based solely on this data.

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Cap ShapeShape of the mushroom cap (pileus): convex, flat, umbonate, funnel-shaped, bell-shaped, etc.

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Hymenium TypeThe spore-bearing surface of a fungus: gills, pores, teeth, ridges, smooth, or wrinkled.

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Fruiting SeasonTime of year when this species typically reproduces or flowers.

Wet Season

Recent SightingsWhether this species has been observed in the wild in Costa Rica within recent years.

Yes

Habitat SummaryOverview of the specific ecosystems and environments where this species is found in Costa Rica. Multi-lang

Inhabits primarily tropical and subtropical regions of the Americas. It grows on the ground but is always associated with buried roots or decaying wood of broad-leaved trees, frequently in urban parks and secondary forests.

SubstrateThe organic material or host organism this fungus colonizes and decomposes. Multi-lang

Information not available in English. Help us expand this record!

BehaviourDaily activity patterns, movement, territory use, foraging style, and seasonal behavioral changes. Multi-lang

It is a decomposer (saprotroph) that causes white rot. Its rosette structure allows it to maximize the spore dispersal area in confined spaces. It is tough and can remain active for several weeks if moisture is present.

Physical Measures

Length (cm)

10.0 - 30.0 cm

Hymenium StructuresMacro photographs of the spore-bearing surfaces used for mushroom identification.

No hymenium surface images available.

Evolutionary AdaptationsInherited traits and behaviors that improve the species' survival and reproduction in its specific environment. Multi-lang

Radial growth morphology (fimbriate) that optimizes atmospheric moisture capture.
Leathery tissue resistant to rapid bacterial degradation in humid tropical environments.

Main ThreatsDocumented pressures reducing the population: habitat loss, hunting, disease, climate change, and invasive species. Multi-lang

Soil compaction in urban areas damaging underground mycelium.
Removal of stumps and dead wood that serve as essential substrate.

Interesting FactsSurprising or notable facts that highlight what makes this species unique or ecologically important. Multi-lang

Although it looks like a soil fungus, it is always attached to buried dead wood, acting as a bridge between the soil and woody debris.
Its frayed (fimbriate) edges are a key feature to differentiate it from other rosette fungi like Cotylidia.

External ReferencesScientific publications, field guides, and databases that document this species or area.