— 49 — 



Leaves larger, green broad ovate recurved to middle, some- 

 what distant; costa stronger. Capsules unknown. — Eocks r. 

 Eur. Switzerl.! 

 T.P.malacoclada C. M. et Kindb. — Pseudoleskea cat. Can. m. 



Leaves subulate-acuminate recurved near base; costa very 

 short or indistinct. Stem-leaves from broad round ovate base 

 abruptly narrowed; branch-leaves more gradually tapering. Pe- 

 richetial leaves nerveless with patent or curved acumen. Cap- 

 sules unknown. Stem sparingly radiculose not rigid. Tufts 

 green or finally fuscescent. Habit of the last. — Dry rocks r. 

 Amer. Can. Brit. Col.: Macoun. 



S.P.WoUei Austin. — Leskea Aust.; L. cyrtophylla Kindb. 

 cat. Can. m. 



Leaves from broadly round-ovate base short-acuminate, recur- 

 ved below; costa indistinct. Tufts dark-green or brown, nearly 

 eradiculose. Capsules unknown. — Rocks r. Jimer. Can,: Macoun. 



1). Leaves often sinuolate above; cells more or less elongate. 

 9.P.papillosa Lindberg. — Le.'^kea or Heterocladium Lindb.; 

 Pseudoleskea Schimper. 



Leaves very small broad-ovate gtn. short-acuminate; costa 

 sometimes forked; inner basal cells of stem-leaves elongate, the 

 others gen. oval. Tufts dark green. Branches not flagellate. 

 Capsules and flowei-s unknown. — Rocks r. Eur. Norway! Finl.: 

 R. Hult. Sweden: E. Nyman. 



44. Pseudoleskea Bryol. eur. in part. 



I. Eu-Pseudoleskea. Leaf-cells gen. dilated, more or less 

 papillose. Endostomiai segments not split. 



II. Ptychodium. Leaf-cells narroAV, us. smooth or faintly 

 papillose. Endostomiai segments not split. 



I. Eu-Pseudoleskea. 



A. Peristome orange or yellow. Terminal branch-leaves 

 strongly papillose. 



a. Leaves not squarrose, gen. crowded. 

 l.P.atrovirens Dickson. — Hypnum Dicks.; Pseudoleskea Br. eur. 



Leaves from ovate-oblong base narrowed to a subulate serru- 

 late gen. long acumen; inner cells us. rhombic-oval. Terminal 

 branch-leaves with suboval apical cells. Perichetial leaves smooth 

 subulate-acuminate nearly entire; costa short faint. Capsule 

 oval-oblong gen. asymmetric; segments nearly as high as teeth, 

 often split; cilia rudimentary or wanting; lid conic acute. Tufts 

 not densely radiculose, us. brown with green branch-tops. 

 Branches us. subpinnate with numerous branchlets. — Rocks 



