Guide to Liverworts of Oregon: Key to Marsupella 3
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Marsupella 1a plants paroicous > Marsupella 2b oil bodies 2-3 per cell > Marsupella 3
Iceberg Lake, Whatcom County, Washington. Hong 84-515 (CAS).
3a Leaves bilobed, sinus 0.3 of leaf, lobe tips round, perianth and low perigynium distinct; purplish brown or blackish to blackish-brown.
Marsupella sparsifolia
Marsupella brevissima, Three Sisters Wilderness, Lane Co., Oregon.
3b Leaves bilobed 0.2, lobe apex acute; perianth and perigynium distinct or not; dark green, dull brown to reddish-brown.
(Couplet 4)