• Proposed
  • Under Assessment
  • 3Preliminary Assessed
  • 4Assessed
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Clathrus madagascariensis Bouriquet

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Scientific name
Clathrus madagascariensis
Common names
IUCN Specialist Group
Mushroom, Bracket and Puffball
Assessment status
Under Assessment
Proposed by
Patrice Ravonjiarisoa
Patrice Ravonjiarisoa
Thomas Læssøe
Comments etc.
Anders Dahlberg

Assessment Notes

Taxonomic notes

Why suggested for a Global Red List Assessment?

It is an endemic species of Madagascar found firstly in a humid forest of Boina , in the West part of Madagascar, during the colonial period. Since that time any mycologist did not notice its presence there or somewhere else. So, the Madagascar mushroom inventories were focused on edible mushroom. Madagascar is noteworthy for its exceedingly high levels of endemism for very diverse groups of organisms,even at high taxonomic levels. Unfortunately, there is little left of Madagascar’s original fauna and flora and the island is now listed among the top conservation priorities in the world because of the unique character of its rapidly vanishing biodiversity. Since Madagascar’s independence in 1960, the mushrooms of Madagascar have been more or less ignored by western scientists. One unfortunate consequence of this neglect of mushrooms is that they have been ignored in the planning of conservation strategies for the rapidly degrading natural habitats of Madagascar. As an hotspot in the world, the conservation of all biodiversity component is urgent. Its conservation needs current and complete data.  Most of mycology research in Madagascar was focused on some edible mushrooms. Although, there are no information or data about some taxa like Clathrus madagascariensis, an endemic ,  unique and wonderfull species. As it is important to consider this species, because it contribute to raise the malagasy scientific attention to study and elaborate a plan for its conservation and all Fungi taxa later. Also, it is an opportunity to raise the public awareness for Fungi in general. As this species is a source of food of some flies and insects and part of a food chain, it has an important role to play in the forest ecosystem.

Geographic range

The species was found firstly in a humid forest of Boina, in the northwestern of Madagascar. Boina form an half-circle around Majunga, which start in the west of the Baly Bay, and pass in the south of Maevatanana and join Befandriana , the North East Coast of Loza. These sites are characterised by the network of the Mahajamba River, which empties into the Bombetoka Bay or Mahajanga Bay, and its major sites of riparian forests and wetlands

Population and Trends

We have no information about its global status

Population Trend:

Habitat and Ecology

Clathrus madagascariensis was found on soil in a rotten wood in the humid forest and dark in Boina.


Deforestation, forest degradation and degradation of soil are among the most significant threats to terrestrial ecosystems in Boina region. Threats and pressures that are weighing are anthropogenic such as charcoal production, the tavy or slash and burn, cut. In addition, the consequences of climate change and the natural disasters increase these factors to the forest ecosystems.

Conservation Actions

As Protected areas are absolutely critical to the biodiversity in Madagascar, Boina region have 610 539ha which represent 23,5% of the Region area.

Research needed

Current status about its biology, population, ecology, and habitat are needed. We need to carry out investigations of this species in this biodiversity site of Boina and in another humid forest of Madagascar, such as in the East coast.

Use and Trade


-  Bouriquet G. (1970). Principaux Champignons de Madagascar. Nouvelle Edition, p 31, in http://madarevues.recherches.gov.mg/?Principaux-champignons-de
-  Jumelle, H. et H. Perrier de la Bathie.Notes sur la flore du Nord-Ouest de Madagascar. (Ann. du Musée Colonial de Marseille. XV. p. 363-404. 4 fig. pl. X et XI. 1907.)
-  BART BUYCK , The Edible Mushrooms of Madagascar: An Evolving Enigma1, Economic Botany, 62(3), 2008, pp. 509–520
-  Myers, N., R. A. Mittermeier, C. G. Mittermeier, G. A. B. da Fonseca, and J. Kent. 2000. Biodiversity Hotspots for Conservation Priorities. Nature 403:853–858.
-  Dardel Eric, Une région Malgache : le Boina. In: Annales de Géographie, t. 37, n°210, 1928. pp. 527-533; doi : 10.3406/geo.1928.9506
-  Cinquième rapport national de la Convention sur la Diversité Biologique – Madagascar, pg 35-36,  https://www.cbd.int/doc/world/mg/mg-nr-05-fr.pdf
-  Monographie nationale sur la biodiversité :1, http://mg.chm-cbd.net/biodiversity/fol_mono_biodiv
-  Tableau de bord Environnemental de la région Boeny, https://www.pnae.mg/tbe/region-boeny.html

Country occurrence

Regional Population and Trends

Country Trend Redlisted