Mosses and Liverworts
B. Graff photo
The landscape on the wet west side of Glacier National Park reflects a pervasive background of green. Wherever there are water and forests, there will almost certainly be mosses -- usually hundreds of varieties. Mosses colonize wet rocks and exposed soil, forming mats and thick cushions. They are "gendered" beings, with a complex life cycle that includes male and female gametophytes. These structures combine their eggs and sperm to form a sporophyte. The sporophytes live as parasites on the gametophytes and produce spores from capsules on the stalks. The spores in turn form small spreading protonema which are then fertilized by sperm and form the male and female gametophytes. And the cyclic process begins again.
Did You Know?
Grizzly bears in the park have a wide variety of food sources, including glacier lily bulbs, insects, and berries. They may also make an early season meal of mountain goats that were swept down in avalanches over the winter.