VERMONT MOSSES. 



23 



stem leaves ovate or ovate-lanceolate, smooth. 

 Stem and branch leaves very concave, spoon-shaped. 

 19. — Leaves not secund or obtuse. 

 Leaves secund or obtuse. 



Rhynchostegium. 



Myuroclada. 



20. 



Hypnum. 



20. — Capsule short, erect to horizontal, usually somewhat arcuate and contracted under the 

 mouth when dry. 21. 



Capsule longer, very strongly arcuate and contracted i:nder the mouth when dry. 



Amblystegium. 



21. — Leaves deeply plicate lengthwise ; stems often covered with felted radicles ; plants a 

 bright glossy yellow-green. Camptothecium. 



Leaves little or not at all plicate ; stems not covered with felted radicles ; plants less 

 glossy. Brachythecium. 



22.— Leaves secund. Hypnum. 



Leaves complanate. Plagiothecium. 



Leaves equally spreading. 23. 



23.— Lid long subulate-rostrate. Raphidoslegium. 



Lid conic or short-rostrate. 24. 



Plants small and slender. Amblystegium. 



24 



Plants large and robust. 

 25. — Peristome double but segments none or short. 



Peristome doable, segments narrowly linear, indistinctly keeled 



Peristome double, segments lanceolate, distinctly keeled. 

 26. — Leaves entire, ovate to ovate-lanceolate. 



Leaves spinulose-dentate to fimbriate, deltoid or round ovate. 

 27. — Teeth of peristome ciliate papillose. 



Teeth of peristome not ciliate papillose. 

 28. — Stem and branch leaves similar. 



Stem leaves much smaller than branch leaves. 

 29. — Capsule symmetric, erect. 



Capsule unsymmetric, arcuate. 



Family XVIII. Leskeaceae. 



ANOMODON Hook and Taylor. 



I. — Base ot leaves with large fimbriate-papillose auricles. 



Base of leaves not auriculate. 

 2. — Leaves filiform-acuminate. 



Leaves obtuse or apiculate. 

 3. — Branches attenuate. 



Branches not attenuate. 

 4.— Leaves open-erect, teeth nodose. 

 Leaves secund, teeth not nodose. 



Hylocomium and Hypnum. 

 26. 



28. 



29. 



27. 



Thelia. 



Leskea. 



Anomodon. 



Leskea. 



Anomodon. 



Myurella. 



Thuidium. 



apiculatus. 



2. 



rostratus 



3- 

 attenuatus. 



4- 



obtusifolius. 



viiiculosus. 



