''Geastrum albonigrum'' is an inedible species of mushroom belonging to the genus '' Geastrum'', or earthstar genus. It is found in

Costa Rica Costa Rica (, ; ; literally "Rich Coast"), officially the Republic of Costa Rica ( es, República de Costa Rica), is a country in the Central American region of North America, bordered by Nicaragua to the north, the Caribbean Sea to the no ...

and

Mexico Mexico (Spanish: México), officially the United Mexican States, is a country in the southern portion of North America. It is bordered to the north by the United States; to the south and west by the Pacific Ocean; to the southeast by Guatema ...

. ''G. albonigrum'' can be distinguished from superficially similar species '' G. coronatum'' and '' G. lloydianum'' by the presence of a

rhizomorph Mycelial cords are linear aggregations of parallel-oriented hyphae. The mature cords are composed of wide, empty vessel hyphae surrounded by narrower sheathing hyphae. Cords may look similar to plant roots, and also frequently have similar functio ...

on its

exoperidium The peridium is the protective layer that encloses a mass of spores in fungi. This outer covering is a distinctive feature of gasteroid fungi. Description Depending on the species, the peridium may vary from being paper-thin to thick and rubber ...

References

External links

Index Fungorum

MycoBank
albonigrum Fungi of Central America Inedible fungi Fungi described in 2004 {{Geastrales-stub