Astraeus hygrometricus (Pers.:Pers.) Morgan
|
common name(s) : Barometer Earthstar, Hygrometric Earth Star
New classification: Basidiomycota/Agaricomycotina/Agaricomycetes/Agaricomycetidae/Boletales/Diplocystidiaceae
Former classification: Basidiomycota/Homobasidiomycetes/Gasteromycetideae/Sclerodermatales/Astraeaceae
synonyms: Geastrum hygrometricum
(unconfirmed synonyms: Geastrum hygrometricus, Geaster hygrometricus)
edibility : inedible
|
|
The fruiting body is star-shaped with 6-15 rays, opening or closing depending on the humidity level, and with a central spore sac, with whitish grey to brown rays, the spore sac being light grey to beige, without stem.
The fertile surface is internal: the spores are released as dust when mature.
It grows on the ground, in dunes, woodlands, sandy soils, more often in warm climates, on a rather acid soil.
The fruiting period takes place from August to December.
Dimensions: |
width of fruiting body approximately 6 cm (between 1 and 10 cm) |
| total height approximately 2.5 cm (between 1 and 4 cm) |
Astraeus hygrometricus is rare and confined in the forest of Rambouillet, and is quite rare, more generally speaking
.
| | Above : distribution map of Astraeus hygrometricus in the forest of Rambouillet |
|
page updated on 14/01/18