I recently read Robin Wall Kimmerer’s book Gathering Moss. It is a fascinating tale of the life of mosses and it sent me out into the world with a new awareness.
In the photo, there is a cushy bed of moss. In this species, thin red stalks growing out have green capsules on the end that contain spores. These structures are known as the sporophytes and are the result of sexual reproduction. When the spores mature, they will be released, hopefully finding a suitable place to land and grow.
Here’s a small, general overview which I mostly gleaned from the book, but I also watched several videos and perused some articles on the internet. After finishing the book, I decided to go back and start rereading it from the beginning. I also need to invest in a magnifying lens because the world of mosses is miniature.
Depending on the species, mosses can either have separate male and female on leafy shoots or they can have both the male and female on the same shoot on different stems. The sexual organ is usually at the tip, hidden in a cluster of leaves. The female structure is called the archegonium and the male structure is called the antheridium. For the sperm to reach the egg, it needs to be transported through water. That can be accomplished by several ways. The water collected between the leaves of the moss can act as an avenue for the sperm to swim to fertilize the egg. Rain splashing onto the antheridium can carry the sperm in droplets of water. Also, droplets of water containing sperm can cling to tiny creatures living in mosses and as they move around, they can aid in transporting the sperm to the egg.
Robin mentions in her book that she has seen birds eating the sporophytes. I captured a couple of photos of a junco hopping around on a limb, and it appears to be foraging on them.