- Mycelium (plural mycelia) is a root-like structure of a fungus consisting of a mass of branching, thread-like hyphae. Fungal colonies composed of mycelium are found in and on soil and many other substrates. A typical single spore germinates into a monokaryotic mycelium, which cannot reproduce sexually; when two compatible monokaryotic mycelia join and form a dikaryotic mycelium, that mycelium may form fruiting bodies such as mushrooms. A mycelium may be minute, forming a colony that is too small to see, or may grow to span thousands of acres as in Armillaria.
- Star Tales - Ursa Minor (ianridpath.com)
The Little Bear was said by the Greeks to have been first named by the astronomer Thales of Miletus, who lived from about 625 to 545 BC. The earliest reference to it seems to have been made by the poet Callimachus of the third century BC, who reported that Thales ‘measured out the little stars of the Wain [wagon] by which the Phoenicians sail’. The little bear was evidently unknown to Homer, two centuries before Thales, for he wrote only of the Great Bear, never mentioning its smaller counterpart.