Astraeus

In Greek mythology, Astraeus /əˈstriːəs/ (Greek: Ἀστραῖος) was an astrological deity and the Titan-god of the dusk. Some also associate him with the winds, as he is the father of the four Anemoi/wind deities.

In Hesiod's Theogony and in the Bibliotheca, Astraeus is a second-generation Titan, descended from Crius and Eurybia. However, Hyginus wrote that he was descended directly from Tartarus and Gaia, and referred to him as one of the Gigantes.

Appropriately, as god of the dusk, Astraeus married Eos, goddess of the dawn. Together as nightfall and daybreak they produced many children who are associated with what occurs in the sky during twilight.

They had many sons, the four Anemoi ("Winds"): Boreas, Notus, Eurus, and Zephyrus, and the five Astra Planeta ("Wandering Stars", i.e. planets): Phainon (Saturn), Phaethon (Jupiter), Pyroeis (Mars), Eosphoros/Hesperos (Venus), and Stilbon (Mercury). A few sources mention one daughter, Astraea, the goddess of innocence and, sometimes, justice.

Astraeus (fungus)

Astraeus is a genus of fungi in the family Diplocystaceae. The genus, which has a cosmopolitan distribution, contains nine species of earthstar mushrooms. They are distinguished by the outer layer of flesh (exoperidium) that at maturity splits open in a star-shape manner to reveal a round spore sac. Additionally, they have a strongly hygroscopic character—the rays will open when moist, but when hot and dry will close to protect the spore sac. Species of Astraeus grow on the ground in ectomycorrhizal associations with trees and shrubs.

Description

The mycelium of immature specimens is fibrous, and originates from all parts of the surface. The peridium is roughly spherical, and made of two distinct tissue layers. The outer layer, the exoperidium, is thick, leathery, and initially inseparable from the inner layer (endoperidium). At maturity, the exoperidium bursts open into several pointed "rays". The inner layer of tissue, the endoperidium, is thin, like a membrane. The spore case enclosed by the endoperidium has no stalk (sessile), and is opened at the top by a tear or pore. Microscopically, sterile cells, long-threaded cells called capillitium originate from the inner surface of the peridium; they are highly branched and interwoven. The spores are large, spherical, minutely warted, and brown.Astraeus species are strongly hygroscopic, and absorb moisture from the environment, so that the rays are closed over the spore case when dry, but open up flat when moistened.

Astraeus (beetle)

Astraeus is a genus of beetles in the family Buprestidae, containing the following species: