Guide to Liverworts of Oregon: Liochlaena lanceolata Nees.
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Synonym: Jungermannia lanceolata auct. non L.; Jungermannia leiantha Grolle
Special Status: None.
Recognition: The cylindrical perianth with indented beak is distinctive. Sterile material is less easy to recognize; it is indistinguishable in the field from Jamesoniella autumnalis.
Distribution: On rotting wood; across the state in moist, often streamside, habitats.
Comments: The paroicous inflorescence distinguishes this from Jamesoniella, which is dioicous. However, occasionally perianths do not have male bracts subtending them,i.e., strictly female shoot tips may occur. Also, as illustrated below, an underleaf may be found on rare occasions.
Long known in traditional literature as Jungermannia lanceolata L., the taxonomic history is confusing. It is the type of the Family Jungermanniaceae but the actual type of Jungermannia lanceolata is Jungermannia atrovirens. The most recent treatment of liverwort taxonomy (Stotler and Crandall-Stotler 2017) has placed Jungermannia leiantha in the family Solenostomaceae, different from the family Jungermanniaceae that is now typified by Jungermannia atrovirens. In this new family, Jungermannia leiantha Grolle is known as Liochlaena lanceolata Nees.
Goodman Creek, Lane County, Oregon, DHW m3051.
Goodman Creek, Lane County, Oregon, DHW m3051.
Perianth - Pine Creek, Modoc County, California, DHW m1443.
Oil bodies - Left: Pine Creek, Modoc County, California, DHW m1443. Right: Goodman Creek, Lane County, Oregon, DHW m1635b.
Left: Oil bodies. Right: verrucose cuticle. - White Rock Fen, Linn County, Oregon, DHW m1678.
Left: gemmiferous shoot. Right: underleaf (rare in this species). - White Rock Fen, Linn County, Oregon, DHW m1678.