GROUP B1

Guide to Liverworts of Oregon: Key to Genera 63

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1a plants thallose > 2b chloroplasts numerous > 62a thallus tissue homogeneous > 63

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Sphaerocarpos texanus, Lane Co., Oregon. DHW m1511a.

63a Thallus thin, with ruffled edges growing outwards, thickly covered with bottle-like pseudoperianths. The perianths contain gametangia, male and females growing separately.
Sphaerocarpos

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(Riccardia palmata, Coos Co., Oregon. DHW 9369)

63b Thallus ribbon like, often much branched with irregular or pinnate branches; capsules exserted on a long seta
(Couplet 65)

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