Jungermannia polaris Lindb.
Annotated by David H. Wagner, 13 Oct 2014. Remarks: The bulk of the voucher is Anthelia juratzkana: paroicous; perianths not emergent; elaters with 3 slender spirals. With (A) Jungermannia polaris (a rare species) and (B) Cephalozia ambigua (tiny amount separated).

Oregon: Deschutes: Deschutes National Forest, Crescent Ranger District, Three Sisters Wilderness, Broken Top Trail, between Crater and Little Crater Creeks, seep below Broken Top. Elev. 7500 ft
44.07255° N, 121.68928° W,
Datum: NAD83.
Liverwort found amongst small patch of Anthelia juratzkana on moist bank of alpine spring on southeast bowl of Broken Top mountain., Partially shaded, aspect: 90?; mineral soil. Approx. 0.8 miles N of where trail crosses Crater Creek. 2 tiny patches seen (6\