Spores:
Spores are reproductive structures of plants that are produced by special cells called sporangia. They are small, lightweight, and typically produced in large numbers. Spores are capable of surviving harsh environmental conditions and can remain dormant for long periods before germinating into new plants.

Plants that reproduce through spores:
1. Ferns
2. Mosses

Ferns:
Ferns are a group of plants that reproduce through spores. They have a unique life cycle that involves two distinct stages: the sporophyte and the gametophyte. The sporophyte is the dominant stage and is what we typically think of as a fern. It produces spores in specialized structures called sporangia, which are located on the underside of the fronds. The spores are dispersed by wind, and when they land on suitable soil, they germinate into the gametophyte stage. The gametophyte is a small, heart-shaped structure that produces male and female gametes. After fertilization, a new sporophyte plant is produced.

Mosses:
Mosses are another group of plants that reproduce through spores. Unlike ferns, mosses do not have a true root system or leaves. Instead, they have simple structures called rhizoids that anchor them to their substrate and absorb water and nutrients. Mosses produce spores in specialized structures called capsules, which are located at the tip of a stalk. The capsules are often covered by a protective structure called a calyptra. When the spores are mature, the capsule opens and the spores are dispersed by wind. When the spores land on suitable soil, they germinate into a small, thread-like structure called a protonema. The protonema eventually develops into the mature gametophyte stage, which produces male and female gametes. After fertilization, a new sporophyte plant is produced.

In summary, spores are reproductive structures produced by plants that are capable of surviving harsh environmental conditions. Ferns and mosses are two groups of plants that reproduce through spores, each with their unique life cycle and reproductive structures.