Any of a large group of plants with a simple structure that can grow on bare substrates and are known for their symbiotic relationship between fungi and algae.
फफूंदी और शैवाल का संगम
English Usage: "Lichens play a crucial role in the ecosystem by contributing to soil formation."
Hindi Usage: "काई पारिस्थितिकी तंत्र में मिट्टी के निर्माण में महत्वपूर्ण भूमिका निभाती है।"