- Proposed
- Under Assessment
- 3Preliminary Assessed
- 4Assessed
- 5Published
Phaeogyroporus hibiscus (Corner) E. Horak
- Scientific name
- Phaeogyroporus hibiscus
- Author
- (Corner) E. Horak
- Common names
- IUCN Specialist Group
Mushroom, Bracket and Puffball- Kingdom
- Fungi
- Phylum
- Basidiomycota
- Class
- Agaricomycetes
- Order
- Boletales
- Family
- Boletinellaceae
- Assessment status
- Under Assessment
- Proposed by
- Catia Canteiro
- Assessors
- Susana P. Cunha, Susana C. Gonçalves, Gregory Mueller
- Comments etc.
- Catia Canteiro
Assessment Notes
Not sure what to select for habitat type.
I have chosen DD given the lack of records, but this species is rather conspicuous and reported for Queensland, Australia (general location only). The lack of records in Australia where search efforts are high and deforestation in Malaysia could point towards a threatened category but I hesitated to do so with so little information.There are two isotype records for this species on GBIF.org from 2 different dates, but only one (from 1972) is mentioned in original article. I think record from 1973 originated from a typo as the corresponding voucher label was corrected to 1972.
Species changed names in “Revision of Malaysian Species of Boletales s.l. (Basidiomycota) Described by E.J.H. Corner (1972, 1974)”, but I couldn’t access the book so I’m not sure if any more records are mentioned there.
Justification
Phaeogyroporus hibiscus is a bolete known from Malaysia and Queensland Australia. There are very few documented observations of this species and it is not clear whether it is uncommon or under-recorded. Forest loss and degradation in Sarawak Malaysia and Queensland has been ongoing and continues (Global Forest Watch 2023, WWF Australia 2022). Without more recent records or targeted search efforts it is not possible to confidently estimate population size and trends, but given the high rate of forest loss in its reported range, taking a precautionary approach, a population decline of the species is inferred at at least 30% over the past 50 years (3 generations) continuing into the future. It is assessed as Vulnerable.
Taxonomic notes
Originally described as Boletus hibiscus, Phaeogyroporus hibiscus is the only remaining species in the Phaeogyroporus genus (Index Fungorum, 2023). However, its taxonomic placement may need further reviewing as most of the species originally assigned to this genus have since been transferred to Phlebopus. Moreover, Raghoonundon et al. (2021) argued that the reason for the transfer of this species from Boletus to Phaeogyroporrus rather than Phlebopus is not clear.
Why suggested for a Global Red List Assessment?
Geographic range
Known from the Bako National Park in Sarawak, Malaysia and Queensland, Australia (GBF, 2023).
Population and Trends
P. hibiscus was documented in 1972 in the Bako National Park in Sarawak, Malaysia (in two forested bays within the park) and in 1989 in Queensland, Australia (GBIF.org, 2023). In the original description of the species, Corner (1974) reported finding 150 fruitbodies in two sites within the Bako National Park and described them as large and bright brownish yellow. This suggests that the species is likely easy to detect, so the absence of records could indicate that it is now uncommon or confused with other similar species, especially in Australia where search efforts are higher. Forest loss and degradation in Sarawak Malaysia and Queensland has been ongoing and continues (Global Forest Watch 2023, WWF Australia 2022). Without more recent records or targeted search efforts it is not possible to confidently estimate population size and trends, but given the high rate of forest loss in its reported range, taking a precautionary approach, a population decline of the species is inferred at at least 30% over the past 50 years (3 generations) continuing into the future.
Population Trend: Decreasing
Habitat and Ecology
Found in seashore sand in forested bays, growing in circles and with Hibiscus tiliaceus, Dillenia suffuticosa, Planchonella sp. and Pandanus odoratissimus. (Corner, 1974)
Threats
The extensive deforestation in Malaysia and specifically in Sarawak (Global Forest Watch, 2023) may present a threat to this species.
Conservation Actions
Site protection, especially in Malaysia is needed.
Research needed
Search efforts in known locations and in areas of potentially suitable habitat are needed to estimate population size and distribution.
Use and Trade
Bibliography
Country occurrence
Regional Population and Trends
| Country | Trend | Redlisted |
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