Question

In perfumery, the lichen species used are
A. Caledonia
B. Evermia
C. Snead
D. Parmelia

Answer 1

Lichens are the formation of the symbiotic association in between algae and fungi, together they survive and benefiting each other, they may grow on a bare rock which caused the pioneer stage on the lithosphere and can grow on tree bark or desiccated wooden floor of the forest.

Complete answer:

Option B:
Evernia prunastri is the lichen which is known as oakmoss that is found in a mountainous temperate forest in the northern hemisphere, it is majorly growing on the trunk or branches of the coniferous and deciduous tree, the oakmoss appear are antler of the deer and its colour range from green to greenish-white. It is majorly used in perfumery because it produces turpentine odour.

Apart from oakmoss, another lichen called tree moss (Pseudevernia furfuracea) is used in perfumery

Hence, the correct answer is option (A).

Option A:
Cladonia is the genus of moss-like lichen and it acts as major food sources of the reindeer and it is an economical species of reindeer- herders. Some of the species of this lichen used to extract antibiotic cream. Some of them are used as decoration purposes.

Option C:
Snead is not a kind of lichen and does not belong to any kind of thing.

Option D:
Parmelia is the large foliose lichen, it appears bluish-grey and tips of this lichen are square-shaped. It is found all over the globe from arctic to antarctic. 40 number of species of Parmelia. It acts as a food source for caterpillars of certain Lepidoptera such as bagworm moths.

Note: Lichen not only use in perfumery or antibiotic cream but it also so symbiotic relation with some leguminous plants or another plant, they help the plant to fix nutrient in their roots and return they get a fraction of nutrition and shelter in the root of the plants.