• Proposed
  • 2Under Assessment
  • 3Preliminary Assessed
  • 4Assessed
  • 5Published

Cyathus earlei Lloyd

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Scientific name
Cyathus earlei
Common names
IUCN Specialist Group
Mushroom, Bracket and Puffball
Assessment status
Proposed by
Larissa Trierveiler-Pereira
Comments etc.
Larissa Trierveiler-Pereira, Tatiana Gibertoni

Assessment Notes

Taxonomic notes

Peridium infundibuliform, 6–11 mm high, 5–9 mm wide at the mouth, not expanding at the top or tapering abruptly at the base; attached to the substrate by a conspicuous reddish-brown to dark brown (6F5–7F5) emplacement, 3–5.5 mm in diameter. Exoperidium hairy, bronze to reddish brown (5E5–6F5), covered with a 0.4–0.7 mm tomentum, arranged in irregular and flexible tufts; external wall smooth to faintly plicate, 0.4–0.5 mm between folds. Mouth minutely fimbriated, 0.2–0.5 mm long, concolor to the exoperidium. Endoperidium brownish grey to greyish brown (6D2–6D3), smooth to faintly plicate, 0.5 mm between folds, perceptibly bright, contrasting with the exterior. 1–2 mm brownish grey to greyish brown (5F2–8F3) stipe; epiphragm fragile, white to beige, flexible. Peridioles 2–3 mm × (1.5) 2–3 mm, dark grey to brownish grey (1F1–8F2), bright, 14–16 per basidioma, irregular, circular or elliptical in outline. Tunic present, hyaline, bronze. Cortex double layered. Basidiospores smooth, hyaline, elliptical to ovoid, without an apicule, 13.97–19.05 × 10.16–12.7 µm (L = 16.28 µm; W = 11.37 µm; Qm = 1.44), thin walled, 1.27–2.54 µm. Growing on rotten wood.

Why suggested for a Global Red List Assessment?

Due to the several records in the Neotropics, we suggest this species to be categorized as Least Concern (LC).

Geographic range

Known from tropical America (5 countries).

Population and Trends

There are 86 records of this species in GBIF, most of them from Brazil (57) and Costa Rica (23).

Population Trend: Uncertain

Habitat and Ecology

Known from Northern and Northeastern Brazil, growing on rotten wood. The species is found in Atlantic Forest, Amazon Forest, and Caatinga.

Subtropical/Tropical Dry ForestSubtropical/Tropical Moist Lowland ForestSubtropical/Tropical Dry ShrublandSubtropical/Tropical Moist Shrubland


In Brazil, this species is found in the Atlantic Forest, a hotspot, in the Amazonia (currently being deforested at the highest rates in the last decades) and Caatinga (threatened with desertification).

Housing & urban areasCommercial & industrial areasAgro-industry farmingAgro-industry grazing, ranching or farmingMining & quarryingRoads & railroadsIncrease in fire frequency/intensity

Conservation Actions

Reports in Brazil are from mostly from protected area.

Site/area protection

Research needed

More accurate data on species distribution

Population size, distribution & trends

Use and Trade




Country occurrence

Regional Population and Trends

Country Trend Redlisted