Field Guide

Mosses, Liverworts, and Lichens

Showing 1 - 6 of 6 results
Closeup of thallus lobe of snakeskin liverwort
Liverworts
About 112 species in Missouri
Liverworts, along with mosses, make forest floors, streamsides, and spring openings beautiful. They’re fascinating but overlooked.
New York scalewort growing on the bark of a tree trunk
New York Scalewort
Frullania eboracensis
New York scalewort is the most common and easily recognized leafy or scaly liverwort. It forms tiny, delicate traceries on tree bark and is usually rusty or purplish red or green.
Wall scalewort, Porella species, growing on sandstone at Painted Rock CA
Porella Liverworts (Wall Scaleworts)
Porella spp.
Porella liverworts are fairly common in Missouri, but few people recognize them when they see one. These scaleworts are some of our many species of leafy liverworts — small, mosslike plants that form traceries on rocks or trees.
Fern moss, Thuidium species
Fern Mosses (Thuidium Mosses)
Thuidium spp.
Easy to identify, fern mosses look like tiny ferns. Just like many fern fronds, the branches lie on one plane and become shorter toward the tips. They even lean over like fern fronds.
Baby tooth moss, or woodsy thyme-moss, Plagiomnium cuspidatum
Tooth Mosses (Thyme Mosses)
Plagiomnium spp. (formerly Mnium spp.)
Common and easy to recognize, tooth mosses in genus Plagiomnium have several common names. Identify them by their large, oval, transparent, light green, finely toothed leaves that grow on only two sides of the stalk.
Mosses growing at Runge Nature Center
Mosses
Approximately 315 species and varieties in Missouri
Mosses are small, low plants that form cushions or carpets, usually in damp places. They lack veinlike structures and do not produce flowers or seeds. They release spores from tiny capsules that usually arise on thin stalks.
See Also

About Mosses, Liverworts, and Lichens in Missouri

Mosses, liverworts, hornworts, and lichens seem rather similar, but these organisms are in very different groups. Mosses, liverworts, and hornworts are small, low plants usually found in damp habitats. Unlike more familiar plants, they lack veinlike structures and do not produce flowers or seeds — instead, they produce spores. Meanwhile, lichens are not plants at all: they are a collection of different fungi that have photosynthetic algae living within their tissues.