— 25 — 



26. Leskea Hedwig. 



A. Leaves nearly uniform, more or less recurved, smooth at 

 borders at least below, more or less opake, often faintly papillose. 

 l.L.polycarpa Ehrhart. 



Leaves faintly recurved near base^ gen. acute sJiort-decurrent 

 not much distant; those of stem ovate-oblong, those of branches 

 subovate. Perichetial leaves long-acuminate; costa thin. Capsule 

 subcylindric often large; teeth pale yellow, segments nearly as 

 high; lid conic acute often apiculate. Tufts often green. — 

 Rocks and base of trees princ. on humid places. Eur. common 

 below alp. regions. Sweden, Germany, Italy! Amer. not r. Can.: 

 Macoun; Drummond n. 223. U. S.: Jesup, com. Macoun. Greenl.: 

 AVenck, com. Roell. 

 *L.Subobtusifolia C. M. et Kindb. cat. Canad. m. 



Branch-leaves very distant and decurrent gen. obtuse. Cap- 

 sule not large; lid convex apiculate. — Base of trees r. Amer- 

 Can.: Macoun. U. S. Ohio: Parpus, com. Roell. 

 2.L.obscura Hedwig; SuUivant icon, muscor. 



Leaves recurved gen. all around, smaller than in the last, 

 nearly crowded and not decurrent, subovate gen. obtusate obtuse. 

 Perichetial leaves short-acuminate; costa thick. Capsule sub- 

 oblong small; teeth pale; segments short; lid conic obtuse or 

 subobtuse. Tufts us. dirty green. Branches shorter than in 

 the last. — Base of trees near water r. Amer. U. 8.: SuUivant, 

 com. C. Mueller; Austin, con:. Macoun; com. Renauld and 

 Cardot. 



B. Leaves very diversiform, not distinctly recurved, very pa- 

 pillose also at borders all around, opake. 



3.L.(?)Cardoti Kindb. revue bryol. 1895. — sLeskea obscura 

 Hedwig »: Cardot in litt. 



Leaves nearly crowded; those of stem narrowly ovate-oblong 

 acuminate acute; those of branches broad ovate gen. subobtuse 

 apiculate. Capsule suboblong; peristome not seen. Habit of 

 Anomodon. — Amer. r. U. S. Louisiana: Langlois, com. J. 

 Cardot. 



27. Lescuraea Bryol. eur. 



A. Costa of leaves not excurrent. Uppermost branch-leaves 

 r. mamillose above. 



l.L. striata Schwsegrichen. — Pterogonium Schw.; Lescuraea 

 Br. eur. 



Leaves oblong-lanceolate gradually acuminate recurved to the 

 somewhat long acumen, slightly decurrent, us. entire; cells 



3 



