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Durianella - Wikipedia

From Wikipedia, the free encyclopedia

Durianella

Collected in Malaysia
Conservation status
Vulnerable (IUCN 3.1)^[1]
Scientific classification
Kingdom:	Fungi
Division:	Basidiomycota
Class:	Agaricomycetes
Order:	Boletales
Suborder:	Boletineae
Family:	Boletaceae
Genus:	Durianella A.W.Wilson & Manfr.Binder (2008)
Type species
Durianella echinulata (Corner & Hawker) Desjardin, A.W.Wilson & Manfr.Binder
Synonyms^[2]
Hydnangium echinulatum Corner & Hawker (1953)

Durianella is a fungal genus in the suborder Boletineae, family Boletaceae of the order Boletales.^[3] It contains the single species Durianella echinulata, found in Peninsular Malaysia and Borneo.^[4]

Taxonomy

The fungus was originally collected in a jungle in Kemaman, Trengganu (Malaysia), on 24 June 1932, where it was found growing on soil buried in leaves at a river's edge. It was described as Hydnangium echinulatum by E.J.H. Corner and Lilian Hawker in 1953, although they noted that no other known species of Hydnangium had a spiny peridium.^[5] The species was known only from a single specimen until recollected in 2005 and 2006. Genetic analysis suggested it was a member of the Boletales suborder Boletineae, and not related to the genus Hydnangium of the Agaricales. The blue-staining suggested a relationship with Gyroporus, while the structure of the fruit bodies suggested an affinity with Pisolithus.^[4]

The genus name Durianella refers to the fruit bodies' resemblance to a small durian.^[4]

Description

The fungus's fruit bodies are irregular and globular, measuring 1.7–3.5 cm (0.67–1.38 in) wide and 1.2–2.3 cm (0.47–0.91 in) high, and are covered in 1 mm-high tan conical warts. Under the surface is a white 1–2 mm thick peridium which turns dark blue when cut – the superficial 0.5–1 mm doing so immediately, while the remainder takes 1–2 minutes to do so.^[4] The gelatinous gleba is in globules throughout the interior and also stains blue when cut. It is white when young and becomes tinted with orange with age. The white fibrous tissue surrounding the gleba lobules also turns blue on cutting. The fruit body has a well-developed columnella (a sterile column of tissue extending from the base of the gleba into the fruit body). It is egg-shaped, gelatinous, measuring 5–15 mm thick by 5–10 mm long. When injured, it stains grayish blue in 1–2 minutes. On the exterior of the fruit body, it is attached to the soil by orange rhizomorphs.^[4]

The spores are spherical or nearly so, and have a thick wall measuring 0.5–1.5 μm. The spore surface is covered with narrow spines up to 3 μm long; spore dimensions are 9–10 by 8.5–10 um (without spines) or 12–15 by 11.5–13.5 μm (with spines). The basidia (spore-bearing cells) are club-shaped, measuring 24–32 by 9–11.5 μm, and have two or four sterigmata up to 13 μm long. Clamp connections are absent from the hyphae.^[4]

Habitat and distribution

Durianella echinulata is found under trees of the genus Shorea in Peninsular Malaysia and Borneo. It fruits on the ground singly, scattered, or in small clusters.^[4]

References

^ Cunha, S.P.; Gonçalves, S.C. (2024). "Durianella echinulata". IUCN Red List of Threatened Species. 2024: e.T258432990A258434707. Retrieved 14 December 2024.
^ "Durianella echinulata (Corner & Hawker) Desjardin, A.W. Wilson & Manfr. Binder, Mycologia, 100 (6): 957, 2008". MycoBank. International Mycological Association. Retrieved 2013-05-14.
^ Nuhn ME, Binder M, Taylor AFS, Halling RE, Hibbett DS (2013). "Phylogenetic overview of the Boletineae". Fungal Biology. 117 (7–8): 479–511. doi:10.1016/j.funbio.2013.04.008. PMID 23931115.
^ ^a ^b ^c ^d ^e ^f ^g Desjardin DE, Wilson AW, Binder M (2008). "Durianella, a new gasteroid genus of boletes from Malaysia" (PDF). Mycologia. 100 (6): 956–61. doi:10.3852/08-062. PMID 19202849. S2CID 12740142. Archived from the original (PDF) on 2010-06-03. Retrieved 2010-06-03.
^ Corner EJH, Hawker LE (1953). "Hypogeous fungi from Malaya". Transactions of the British Mycological Society. 35 (1): 125–37. doi:10.1016/s0007-1536(53)80057-4.

External links

Durianella in Index Fungorum

Durian

Durio species
(List)

Edible species	Boschia grandiflora Durio dulcis Durio graveolens Durio kutejensis Durio lowianus Durio macrantha Durio oxleyanus Durio testudinarius Durio zibethinus
Species of unknown edibility	Durio acutifolius Durio affinis Durio beccarianus Durio bukitrayaensis Durio burmanicus Durio carinatus Durio crassipes Durio excelsus Durio griffithii Durio kinabaluensis Durio lanceolatus Durio lissocarpus Durio macrolepis Durio macrophyllus Durio malaccensis Durio mansoni Durio oblongus Durio pinangianus Durio purpureus Durio singaporensis Durio wyatt-smithii
Durian cultivars ( 2 )	Musang King Sultan King

Odor compounds

Dishes

Diseases and pests

In culture

Eponyms

Places

Sungai Durian	Kotabaru Patamuan Payakumbuh Perak Solok Tabalong

Storms

Other eponyms

Agriculture

Thailand

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