Guide to Liverworts of Oregon: Key to Herbertus
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1b plants leafy > 3b leaves not divided, not ciliate > 6a oil bodies 2+ or unknown > 7b no small dorsal lobe > 10a succubous > 11b isophyllous > 25a leaves bilobed more than 0.5 > 26a leaves longer than 1 mm > Herbertus
Ucluelet, Tofino, BC. Schofield 13469 (UBC).
1a Leaves divided 0.7 or more; leaf base straight, without rounded corners; underleaves almost the same size and shape as lateral leaves; in Oregon known from Saddle Mountain and the Columbia River Gorge.
Herbertus aduncus
Clatsop Co., Oregon. W.Schofield 68047 (UBC).
1b Leaves divided 0.5-0.7; leaf base widened and rounded at basal corners; underleaves shorter than the lateral leaves; in Oregon known only from Saddle Mountain, Clatsop County.
Herbertus dicranus