cryptogamic
Concise Oxford English Dictionary © 2008 Oxford University Press:
cryptogamic/-ˈɡamɪk/
▶adjective
- 1 Botany relating to or denoting cryptogams.
- 2 Ecology relating to or denoting a fragile black surface layer of cyanobacteria, mosses, and lichens.
'cryptogamic' also found in these Oxford entries:

