Guide to Liverworts of Oregon: Key to Diplophyllum 3
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Diplophyllum 1b leaves not decurrent > Diplophyllum 2b leaf lobes not vittate > Diplophyllum 3
Diplophyllum taxifolium, Mt. Adams, Washington. D. Stone 301384
3a Dioicous; median cells of ventral lobe 1.5-2 times as long as wide; gemmae abundant (except when fertile, when sexuality is obvious); most abundant inland and at high elevations
Diplophyllum taxifolium
Diplophyllum obtusifolium, paroicous shoot, TT Munger Research Natural Area, Skamania Co., Washington. DHW 7819.
3b Paroicous (note, however, male bracts are not prominent); median cells of ventral lobe 2-4 times as long as wide; gemmae rare, not known from Oregon specimens; most abundant along coast, less common inland and uncommon at high elevations
Diplophyllum obtusifolium