Cynodontlum.] BEYACE^. 59 



1. R. fugax, Brucli <fc Scliimi). Pulvinate-cesjDitose ; stems 

 ^ to 1 c. m. long, radiculose below : leaves liuear-lanceolate, 

 minutely denticulate or entire at the apex, carinate in the 

 middle, flat on the borders ; costa subpercurrent : calyptra large : 

 capsule small, broadly ovate, reddish brown, with a short neck 

 and a pale yellow pedicel twisted to the left when dry ; lid ab- 

 ruptly long-subulate from a broad convex base ; teeth j^ale 

 brown, hygroscopical and fugacious ; annulus narrow, per- 

 sistent. — Bryol. Eur. t. 41. Weisia /uffcix, Hedw. Spec. 

 Muse. 64, t. 13. 



Hab. Fissures of schistose and sandstone rocks in mountains. White 

 Mountains (OaJces, James}] Lake Superior {Macoun). 



2. R. denticulata, Bruch & Schimp. Differs from the 

 last in the plants l)eing stronger and loosely cespitose, the leaves 

 longer, recurved from the middle, cirrhate-crisjjate when dry, 

 shining, coarsely and distantly dentate toward the apex, cari- 

 nate, the costa vanishing lower, the caj)sule more solid, ovate- 

 globose, with a more distinct collum, less deeply costate when 

 empty, the teeth lanceolate at base, longer-subulate and more 

 solid, darker-colored and persistent. — Bryol. Eur. t. 42. Weisia 

 denticulata, Brid. Muse. Recent. Suppl. i. 108. 



Hab. White Mountains {Oakes, James); sandstone rocks on Slippery 

 Eoclv Creek, Pennsylvania, under the shade of Magnolia glauca (Lesque- 

 reux); near Easton, Pa. (T. C. Porter). 



17. CYNODONTIUM, Schimp. 



Plants pulvinate-cespitose. Stems radiculose-tomentose. 

 Leaves gradually longer upward, tufted at the top of the 

 branches, open, flexuous, crispate when dry, linear-lanceolate, 

 crenulate or denticulate at the apex, carinate-concave, reflexed 

 on the borders ; areolation papillose, strongly chlorophyllose, 

 opaque in the upper jiart of the leaves, minute, quadrate, not 

 enlarged at the angles ; costa nearly terete. Flowers monoe- 

 cious, gemmiform. Capsule oval-oblong, with a regular or 

 strumose collum, striate, more or less costate Avhen dry. Oper- 

 culum obliquely beaked. — Dicrarium, Auct., in part. 



1. C. Schisti, Schimp. Leaves lanceolate from an enlarged 

 oblong base, minutely crenulate on the recurved borders : cap 



