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90 2. , Hook.; foliis oblongo-lanceolatis superne grosse serratis in acumen longum flexuosum desinentibus; operculo convexo-conico; pedicello exsiccato omnino sinistrorsum torto.—F. Hibernica, Bryol. Europ. t. 304; Müll. Synop.; Schimp. Synop.—Europe and California, Bigelow.

3., Wahl.; foliis obovato-oblongis acumine filiformi longiusculo instructis vel obovato-spathulatis brevius tenui-acuminatis luteo-limbatis integris vel obtuse serratis; operculo convexo-conico; pedicello siccitate superne ad dextram inferne ad laevam torto.—F. calcarea, Wahl. (1806), ex Schimp. Synop. Musc. Europ. p. 320, 1860. F. Muhlenbergii, Schwægr. Suppl. t. 66, ex Bryol. Europ., Müll. Synop. et Bryol. Brit.—Europe, Northern Africa. California, Bigelow, Bolander.

For this last species, long current under the name of F. Muhlenbergii, Schwægr., Schimper (Synop. 1. c.) adopts F. calcarea, Wahl., as the prior name, alleging that F. Muhlenbergii, founded on Pennsylvania specimens sent to Hedwig, differs in many particulars (not stated) from F. calcarea, Wahl.

Of F. Muhlenbergii, as understood by Schimper, we have seen no specimens.

TAB. 54.—