Guide to Liverworts of Oregon: Tritomaria quinquedentata (Huds.) Buch
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Tritomaria 1a leaves undulate > Tritomaria quinquedentata
Synonym: None.
Special Status: ORBIC List 2.
Recognition: Large, bright green to yellowish brown plants in sprawling patches or ascending when shoots are crowded, usually among other bryophytes. Leaves in two rows down the stem, quite consistently 3-lobed, rarely 4-lobed, distinctly asymmetrical because the ventral margin is much longer than the dorsal margin so the dorsal lobe is the snallest. The lobe tips are acute, usually with a little point (cuspidate). Gemmae are scarce, of variable form, yellow green. Underleaves are not produced.
Distribution: Grows on organic substrates where constantly shady, cool, and moist. According to Hong (1994), "The species occurs on wet humus over boulders, shaded cliffs, soil over exposed rock surfaces, decaying branches at the fringes of spray zones, and among heather on slopes."
Comments: The first and only record of this species from Oregon is on Saddle Mountain (Schofield and Godfrey 1979).
Tritomaria quinquedentata, Essex County, New York. N. Miller 1529.
Tritomaria quinquedentata, Essex County, New York. N. Miller 1529.
Tritomaria quinquedentata, ventral aspect. Essex County, New York. N. Miller 1529.
Tritomaria quinquedentata, Siskiyou County, California. M. Hutten 15622.
Tritomaria quinquedentata, Siskiyou County, California. M. Hutten 15622.
Tritomaria quinquedentata, Siskiyou County, California. M. Hutten 15622.
Tritomaria quinquedentata, Siskiyou County, California. M. Hutten 15622.
Tritomaria quinquedentata, Siskiyou County, California. M. Hutten 15622.