— 48 — 



faintly recurved below at one side. Capsule suboval suberect; 

 teeth yellow scarcely higher than the rimose segments; cilia 

 rudimentary or wanting; lid rostrate or rostellate; pedicel short. 

 Tufts bright green. Branches somewhat compressed. Dioecious 

 r. fruiting. — Base of trees r. Amer. U. S. middle and south, 

 states: Austin, coni. Macoun. 



b. Leaves nearly uniform. 

 4.P.0CCidentalis SuUivant. — Hypnum Sull. icon. m. 



Leaves pellucid nearly smooth obtusate obtuse subovate or 

 ovate-oblong, denticulate above, faintly recurved at base; alar 

 cells small quadrate, inner basal lanceolate, the others gen. 

 rhombic-oval; costa often indistinct sometimes reaching to middle. 

 Capsule suboval straight suberect or incliaed oblong slighth' 

 curved; segments entire as high as teeth; cilia nodose shorter; 

 lid conic rosteUate; pedicel not long. Tufts green silky glossy. 

 Stem irregularly branching or subbipinnate. Habit of Pterygy- 

 nandrum in sterile state. — Base of trees r. Amer. Pacif. distr. 

 Can.: Macoun. »U. S.: Hall»: SuUivant. — Not described in 

 Lesq. et Jam. man. 

 S.P.homalostegia C. Mueller. — Hypnum C. M. in Flora 1873. 



»Leaves faintly papillose obsoletely denticulate not recurved, 

 from cordate base broad-ovate short-acuminate, suberect when 

 moist; alar cells quadrate, the others narrowly elliptic; costa 

 short double. Capsule subcyhndric asymmetric horizontal; teeth 

 red; segments yellow; cilia short; lid nearly flat with short 

 point; pedicel not long. Tufts dusky green. Branches jula- 

 ceous; stem creeping. Monoecious. — Bark of trees r. Amer. 

 U. S. Alabama: Slohr»: C. M. 



B. Leaves entire or at acumen indistinctly sinuolate, pellucid 

 faintly papillose. Dioecious. 



a. Leaves quite entire; cells rotundate exc. the alar. 

 6.F.catenulata Bridel. — Hypnum Brid.; Pseudoleskea Br. eur. 



Leaves ovate or ovate-oblong acute or subobtuse sometimes 

 short-acuminate, fainth' recurved near base, crowded; costa 

 vanishing near middle or shorter. Perichetial leaves suboblong 

 acuminate costate. Capsule oblong arcuate; teeth yellow; seg- 

 ments rimose nearly as high; cilia shorter not appendiculate; 

 lid rostellate. Tufts us. brownish or ferruginous. Stem cree- 

 ping irregularly pinnate, us. rigid when dry. R. fruiting. — 

 On rocks or r. at base of trees. Eur. not r. Switzerl. fruiting, 

 Sweden, Norway! 



* P.Iaxifolia Kindberg. — Pseudoleskea catenulata *laxifolia 

 Kindb. revue bryol. 1892. 



