Scouleria siskiyouensis Shevock & D. H. Norris, a new species restricted to rivers and streams in southwestern Oregon is described and illustrated. This species appears related to the widespread S. aquatica Hook. in Drummond of western North America but is distinguished by a combination of features including lamina bistratose except for a few cells at immediate leaf margin unistratose, leaves lanceolate to ovate-lanceolate and with leaf apex acute to acuminate.
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1 January 2014
Scouleria siskiyouensis (Scouleriaceae), A New Rheophytic Moss Endemic To Southern Oregon, USA
James R. Shevock,
Daniel H. Norris
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Madroño
Vol. 61 • No. 1
January 2014
Vol. 61 • No. 1
January 2014
aquatic mosses
rheophytes
Scouleria aquatica
Scouleria marginata