— IS — 



S.N.pumila Hedwig. 



Leaves sublinear-oblong gen. acute, more or less acuminate 

 or filiform -pointed, slightly undulate, often recurved below at 

 one side and inflexed at the othei-. Capsule oblong; teeth pale 

 yellow; basal membrane of endostome distinct. Often with 

 propagula. — On trees r. on rocks, princ. below alp. regions. 

 Eur. Switzerl.! Amer. »U. S.»: Cardot. 



b. Monoecious not r. fruiting. Capsule partly emergent; endo- 

 stome rudimentary. 

 9.N.oligocarpa Bruch. 



Leaves gen. sublinear-oblong short-acuminate; costa verj' short. 

 Perichetial leaves gradually acuminate. Capsule round-oval; 

 teeth pale yellow. Stem not rigid; branches us. pinnate. — 

 On rocks r. (in Amer.) on trees, princ. in alp, regions, r. Eur. 

 Sweden, Norway! Amer. Can.: Macoun. 

 lO.N.pterantha C. M. et Kindb. cat. Can m. (as subspecies). 



Leaves as in the last but larger, often brown-green; costa 

 longer. Perichetial leaves abruptlj- short-acuminate. Capsule 

 round-oval; teeth white hyaline; antheridia and archegonia more 

 numerous than in the last. Branches rigid, gen. simple and 

 very long. — Rocks r. Amer. Can. Rocky mts: Macoun. 

 IV. Leiophyllum C. Mueller syn. muse. 



A. Leaves obovate arrounded at apex. 



ll.N.Besseri Lobarzewski. — Omalia Lob.; Neckera Juratzka. 

 Leaves small denticulate above, often shining; cells dilated, 

 middle and lower suboval. Perichetial leaves gradually acumi- 

 nate. » Capsule oval subemergent; endostome incomplete with 

 indistinct basal membrane:": Limpricht. — On rocks, r. on trees, 

 r. Eur. Norway, Switzerl.! 



B. Leaves not arrounded at apex, oen. somewhat narrow. 



a. Leaves narrow-oblong or sublanceolate. Capsule long-exserted 

 oval-oblong; segments and basal membrane distinct. 

 12.X.complanata L. — Hypnum L.; Neckera Huebener. 



Leaves short-acuminate acute, minutely denticulate in upper 

 third; middle and lower cells linear-lanceolate, alar subquadrate. 

 Outer perichetial leaves abruptly acuminate. — On trees, less 

 often on rocks. Eur. common. Sweden etc. ! Amer. r. Can.: 

 Waghorne. 



b. Leaves (at least the upper) short and gen. obtusate, smaller 

 than in the last. Capsules unknown. 



IS.N.graoilis James. — Homalia Jam.; Sull. ic. m.; Xeckera 

 Kindb. 



