Marchantia aquatica (Nees) Burgeff
[= Marchantia polymorpha]
Annotated by David H. Wagner, 23 Aug 2014. Remarks: [Marsupella emarginata (Ehrh.) Dumort.] Verification Notes: Oil-bodies 2 (4)/cell, large, bifusiform to oblong, opaque and pinkish. Duplicate voucher at Mt. Baker-Snoqualmie NF, 6472-DUP.

Washington: King County: South bank of South Fork of Snoqualmie River, 14 air km SE of North Bend. Between I-90 and FS Rd. 9020, Hansen Creek Project, Unit 2b. Elev. 1345 ft.
UTM Zone 10T, 603961E, 523605N; SE 1/4 SW 1/4, T23N R9E WM, Sec. 35.
Habitat: At ecotone of closed Tsuga heterophylla forest and riparian corridor. ¶Aspect: 280°. Slope: 1%. Topography: riparian. ¶Associated Species: TSHE, THPL, PISI, ALRU2, VAPA, MEFE, Aruncus doicus, Scouleria aquatica, Racomitrium vatrium, R. aciculare, Hypnum sp., Brachythecium frigidum. Substrate: On short but steeply slanting bedrock.¶Located Notes: scattered evenly and linearly 1 m x 20 m at full water level along S. Fork Snoqualmie River. Abundant big healthy clumps probably distributed along river for indefinite distance. Substrate: saxicolous.

David Kofranek 6472, Aug 16, 2014
WTU, Barcode: WTU-B-079560