👉 The moss fluid, also known as glomeruloid fluid or mucilage, is a viscous, gel-like substance secreted by the cells of mosses, particularly those in the rhizoids and the outer layer of the plant called the peridium. This fluid serves multiple purposes, including providing structural support, retaining moisture, and facilitating nutrient absorption. It acts as a protective barrier against desiccation and harsh environmental conditions, helping mosses survive in diverse habitats. Additionally, the moss fluid aids in anchoring the moss to its substrate and can play a role in the plant's reproductive processes, contributing to the overall resilience and adaptability of mosses.