Biological Classification And System Of Classification Question 212
Question: Which lichen is known as ‘old man’s beard’
Options:
A) Orchill
B) Usnea
C) Cladonia
D) Parmelia
Show Answer
Answer:
Correct Answer: B
Solution:
Usnea, also known as ‘old man’s beard’, is not a plant but a lichen, a symbiotic relationship between algae and a fungus.
Beard Lichen is a member of the Usnea genus and Parmeliaceae family and is described as a greenish to yellow ranging coloured fruticose lichens, that is a mass of long stems and disk-shaped holdfasts, that in some eyes resemble a tangled mass of threads, shrub-like growth, or a scruffy beard.
BETA
