As with other groups of plants, the Atracheata observe times and seasons. A few species may be found in all stages of reproduction at almost all times of year, but most of them produce archegonia and antheridia at a certain season, and mature capsules and spores at another season. Spring fruiting mosses are subject to the vagaries of the weather much as the wild flowers and fruit trees are. And there may be straggling stages of almost any species at almost any time. A prolonged drought is likely to delay development.
Proceedings of the Iowa Academy of Science
©1946 Iowa Academy of Science, Inc.
Conard, Henry S.
"Phenology of Mosses In Iowa,"
Proceedings of the Iowa Academy of Science, 53(1), 141-146.
Available at: https://scholarworks.uni.edu/pias/vol53/iss1/14