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Rh FONTINALIS BIFORMIS, Sulliv. Tab. 59, 60. fluitantes, sola basi ima radicantes, juniores e viridi lutescentes, seniores luride virides.

pedalis et longior, tenuis, flexilis, ramosissimus, ramis ramulisque flexuosis elongatis.

laxe incumbentia, indistincte trifaria, dimorpha; vernalia ampla mollia late ovato-lanceolata concava acuta vel obtusiuscula, aestivalia (illis delapsis) multo minora angustiora convolutacea rigida ramulos novellos vestientia; areolatione media foliorum vernalium lineari, apicali latiore breviore rhombea sphagniformi, basilari ad parvas auriculas decurrentes multo majore quadrato-oblonga.

dioici; femineis rarissimis ad caulis basin positis; masculis longius stipitatis.

oblongo-ovalis vel subcylindrica, perichætialibus apice ætate erosis arete circumvestita, pachyderma; perist. dentibus lineali-lanceolatis, 18–20-articulatis, ciliis solo apice tessellatim conjunctis ceterum liberis appendiculatis, utrisque granuloso-papillosis; operculo conico-rostrato; calyptra elongato-conica basi lacera.

Woodland rivulets, Columbus, Ohio.

Besides other characters less striking, such as the rostrate operculum and the long-stipitate male flower, the prominent