Status: Native
Synonyms:
Jungermannia denudata (Mart.) Nees
Cephalozia denudata (Mart.) Nees
Odontoschisma sphagni var. denudatum (Mart.) Boulay
Sphagnoecetis denudata (Mart.) Trevis.
Pleuroschisma denudatum (Mart.) Dumort.
Odontoschisma denudatum, unlike O. sphagni, has copious gemmae-bearing stalks. The
minute gemmae are single or two-celled. They appear white under low power microscopy but
colorless at high power.
The gemmae stalks bear reduced leaves. O. denudatum is paler in color, yellow green to almost white.
The leaves, like O. sphagni, have a distinct border, although it is not as thick as it is in O. sphagni.
In the fresh state, the laminal cells of O. denudatum have two large oil bodies. The trigones
are swollen. In our 10-year old specimen, the oil bodies are no longer visible but the trigones are
bulging. In the photos below, the nearly white liverwort is the O. denudatum, the light green
one is not.
Please click on an image for a larger file.
Odontoschisma denudatum, collection Karen Blisard, Maine, Washington County, Great Wass Island, on downed tree in mixed hardwood forest, June 12, 2013; Photographs Russ Kleinman & Karen Blisard, February 5, 2023
Odontoschisma denudatum, photomicrograph of stems and gemmae stalks, collection Karen Blisard, Maine, Washington County, Great Wass Island, on downed tree in mixed hardwood forest, June 12, 2013; Photographs Russ Kleinman & Karen Blisard, February 5, 2023
Odontoschisma denudatum, photomicrograph of stems and gemmae stalks, collection Karen Blisard, Maine, Washington County, Great Wass Island, on downed tree in mixed hardwood forest, June 12, 2013; Photographs Russ Kleinman & Karen Blisard, February 5, 2023
Odontoschisma denudatum, dark field photomicrograph of stem, collection Karen Blisard, Maine, Washington County, Great Wass Island, on downed tree in mixed hardwood forest, June 12, 2013; Photographs Russ Kleinman & Karen Blisard, February 5, 2023
Odontoschisma denudatum, dark field photomicrograph of stem and gemmae stalks, collection Karen Blisard, Maine, Washington County, Great Wass Island, on downed tree in mixed hardwood forest, June 12, 2013; Photographs Russ Kleinman & Karen Blisard, February 5, 2023
Odontoschisma denudatum, photomicrograph of stem, collection Karen Blisard, Maine, Washington County, Great Wass Island, on downed tree in mixed hardwood forest, June 12, 2013; Photographs Russ Kleinman & Karen Blisard, February 5, 2023
Odontoschisma denudatum, photomicrograph of leaf, collection Karen Blisard, Maine, Washington County, Great Wass Island, on downed tree in mixed hardwood forest, June 12, 2013; Photographs Russ Kleinman & Karen Blisard, February 5, 2023
Odontoschisma denudatum, photomicrograph of cells of lamina with bulging trigones, collection Karen Blisard, Maine, Washington County, Great Wass Island, on downed tree in mixed hardwood forest, June 12, 2013; Photographs Russ Kleinman & Karen Blisard, February 5, 2023
Odontoschisma denudatum, photomicrograph of gemmae at apex of gemmae stalk, collection Karen Blisard, Maine, Washington County, Great Wass Island, on downed tree in mixed hardwood forest, June 12, 2013; Photographs Russ Kleinman & Karen Blisard, February 5, 2023
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