— 258 — 



acute; costa excuiTent. Capsule oblong-cylindric; teeth much 

 contorted. Tufts dirty green sometimes high. — Earth and 

 stone. Eur. common. Sweden, Italy etc.! Greece: Heldreich. 

 Amer. not r. Can.: Macoun; Waghorne. U. S.: Sullivant, 

 com. C. M, 



49.B.Cruegeri Sonder. 



Differs from the last: Leaves patent when moist; basal cells 

 short-rectangular; costa very slightly excurrent; only the inner- 

 most perichetial leaves acute and very short with not excurrent 

 costa. — On earth r. Amer. U. S.: Langloie, com. Cardot 

 (Cuba: Wright, herb. Sullivant, com. C. Mueller). 



b. Perichetial leaves half-sheathing. All leaves obtuse; costa 

 not excurrent. 



50.B.ainplexa Lesquereux. 



Leaves short suboval or short-lingulate, reflexed near base; 

 basal cells rectangular. Perichetial leaves longer. Capsule sub- 

 cylindric; teeth once contorted. Stems very short not tufted. 

 — Amer. r. U. S.: Bolsender, com. C. Mueller; Howe, com, 

 Cardot. »Can.: Drummond»: Macoun. 



Vn. Eu-Barbula. 

 1. Platy neuron Kindb. 



A. Leaves us. doubly revolute. Peristome us. contorted. 

 51.B.9ornschncliii Schultz. 



Leaves ovate-lanceolate acuminate acute, revolute to apex and 

 often nearly to the excurrent costa. Perichetial leaves larger, 

 Buboblong revolute not sheathing; costa long-excurrent. Capsule 

 oblong-cylindric; teeth much contorted. — On earth r. Eur. 

 Belgium: Roemer. France: Brebisson; Berthoumieu. . Sweden: 

 J. Persson. 

 52.B.revoluta Schrader. — Tortula Schrad.; Barbula Brid. 



Leaves ovate-lanceolate acuminate subobtuse, revolute to apex 

 and nearly to costa; prominent lamina very narrow; costa per- 

 current or slightly excurrent often broader above. Perichetial 

 leaves half-sheathing subconvolute; costa not excurrent. Cap- 

 sule oblong-oval; teeth nearly twice contorted. Tufts dense. — 

 Princ. on calcareous stonewalls. Eur. in lower and warmer 

 districts. France! Italy: E. Adlerz. Germany: Herpell. Spain: 

 Levier. 

 *B.obtusula Lindberg. 



Perichetial leaves more open. » Peristome slightly or not 

 twisted*: Lindb. — Eur. r. Germany: Goll. »Sweden»: Lindb. 



