It is thus the dead lava comes to life, and it is the very smallest of the lichen family that starts the process.
And no sign of life, save for an occasional patch of lichen on a rock.
Exploring the caves and crannies for sea shells and lichen and gulls' eggs became a favourite pastime of hers.
These rocks are well tinted 236 with lichen, but they present a barren appearance.
This lichen will sometimes hang down from the branches in strings of weeping vegetation to the length of five feet and more.
It clings to the mind, when it has once seized on it, like a lichen on the rock.
Another stone wall, patterned with lichen, separated him from the briar-filled wilderness of an old, abandoned orchard.
"These 'ere," pointing to some very pretty moss and lichen brackets.
It is most probable that this organism, which is usually placed among the Alg, consists of the gonidia of a lichen.
The lichen dried and pulverized is to be exhausted by boiling alcohol.
c.1600, from Latin lichen, from Greek leichen, originally "what eats around itself," probably from leichein "to lick" (see lick). Originally used of liverwort; the modern sense first recorded 1715. Related: Lichenaceous.
lichen li·chen (lī'kən)
Any of various skin diseases characterized by patchy eruptions of small, firm papules.
The mutualistic symbiotic association of a fungus with an alga or a cyanobacterium, or both. The fungal component of a lichen absorbs water and nutrients from the surroundings and provides a suitable environment for the alga or cyanobacterium. These live protected among the dense fungal hyphae and produce carbohydrates for the fungus by photosynthesis. Owing to this partnership, lichens can thrive in harsh environments such as mountaintops and polar regions. The more familiar lichens grow slowly as crusty patches, but lichens are found in a variety of forms, such as the tall, plantlike reindeer moss. The association between the different organisms in a lichen is so close that lichens are routinely referred to as a single organism, and scientists classify lichens using the name of the fungal component.