Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
When do we call it lichen? (A) Lichen-like association of Cladosporium-like fungus (according to ITS sequences) with aerial algal cells, on polypropylene surface, Botanical Garden Graz, 2011. Arrows indicate coccal algal cells (a) attached to fungal hypha (f); Bar = 20 μm. (B) Habit of the “black” lichen Cystocoleus ebeneus; a closed sheath of black fungal hyphae (f) wrap a central algal thread (a); Bar = 10 μm.
