122 BRTACE^. [Barbula. 



17. B. recurvifolia, SchimjD. Tufts reddish brown ; stems 

 slender : leaves spreading or curved backward, loosely imbri- 

 cate and slightly twisted when dry, broader, shorter and more 

 solid than those of J^. /allax, acutely carinate, pajjillose on both 

 faces ; borders plane, erect above, reflexed near the base ; costa 

 brown to the apex ; areolation as in J5. fallax, the basilar cells 

 only a little larger, quadrate and rectangular : calyptra very 

 narrow, long-subulate, covering a third of the capsule : capsule 

 erect, long, cylindrical, regular, reddish brown ; lid subulate, 

 beaked ; annulus none. — Coroll. 141, and Syn. 170 ; Aust. 

 Muse. Appal. Suppl. _S. fallax, var. recurv\foUa, Wils. Bryol. 

 Brit. 124. Tortula recurvifoUa., Berk. ; Lindb, Trichost. 250. 



Hab. On rocks, Hoboken, New Jersey; Niagara Falls [Austin); 

 region of the great lakes, Canada (Macoun); Colorado (H. A. Vane). 



18. B. Oruegeri, Sonder. Plants very loosely and widely 



cespitose, reddish brown below, pale green above ; stems slender, 



divided by a simple innovation at the apex : stem-leaves distant, 



somewhat twisted, open, recurved when moist, and incurved at 



the apex, oblong-lanceolate, obtuse, short-mucronate, the borders 



entire, revolute at base ; nerve thick, subexcurrent, green ; cells 



of the areolation minutely quadrate and green at base, very 



minute and very opaque, papillose in the upper part ; perichse- 



tial leaves larger, broader and more loosely areolate at base : 



capsule erect, narrowly cylindrical, pale ; lid obliquely rostrate, 



acute, red ; teeth long and very slender, closely twisted ; 



annulus none. — Muell. Syn. i. 618. 



Hab. Borders of the Mississippi River, Louisiana (C. Mohr); Florida 

 (Garber); sterile. 



19. B. cancellata, Muell. Plants loosely cespitose, short, 

 slender, simple, crispate, yellowish green : stem-leaves erect, 

 close, linear-lanceolate, obtuse and short-mucronate, concave, 

 deeply canaliculate with a thick reddish costa, rugose on the 

 back, narrowly retiexed toward the base ; cells of the areola- 

 tion small, regularly rectangular at base, smaller, quadrate, 

 dark green and pai>illose above; perichaetial leaves narrowed 

 and lanceolate-acuminate from the sheathing base, with a looser 

 more elliptical areolation : pedicel red, flexuous : lid conical, 

 oblique, as long as the cylindrical capsule ; teeth cancellate 

 (fontinaloid), very slender and smooth, purple, split to near the 

 base. — Regensb. Flora, Ivi. 483 (1873). 



