Leslcea.] BRYACE^. §01 



leaves loosely imbricate, open-erect, broadly ovate, narrowed to 

 a long acumen, spinulose-dentate all around, with long papilUe 

 on the back ; costa very short or none ; cells of the areolation 

 somewhat large, pellucid, all rhomboidal, elliptic, simply papil- 

 lose on the outside ; perichastial leaves sheathing, lanceolate, 

 long filiform-acuminate, coarsely dentate : capsule subincurved, 

 oblong-obovate ; teeth pale yellow. — Mosses of U. States, 61 

 and 81, t. 5, and Icon. Muse. 131, t. 83; Sulliv. & Lesq. Muse. 

 Bor.-Amer. Exsicc. n. 250. 



Hab. Mountains of New England {Gary, Frost) ; New York (Austin)', 

 Pennsylvania (Lesquereux); crevices of wet limestone rocks, North Car- 

 olina [Gray, Sullicant). Kecently discovered also in Central Europe. 



120. LESKEA, Hedw. (PI. 5.) 

 Primary stems leafy, irregularly divided ; branches erect or 

 spreading. Stem- and branch-leaves similar, ovate-lanceolate, 

 open or spreading, rarely secund, soft, costate, papillose on 

 both sides. Flowers monoecious and dioecious. Capsule oblong, 

 subcylindrical, straight or subarcuate, thin. Teeth of the peri- 

 stome narrowly lanceolate ; segments narrow, linear ; cilia none. 



1. L. polycarpa, Ehrh. Monoecious: tufts widely intri- 

 cate, dirty green ; stems long, creeping, soft ; branches erect, 

 varying in length : leaves open or subsecund, ovate-lanceolate, 

 concave; borders recurved below; costa vanishing below the 

 apex : capsule oblong, cylindrical, slightly arcuate, constricted 

 under the orange-colored orifice when dry ; lid narrowly conical ; 

 teeth long, linear-lanceolate, yellowish ; segments narrowly 

 linear-subulate, entire, hyaline, as long as the teeth ; annulus 

 narrow. — Crypt. Exsicc. n. 96 ; Bryol. Eur. t. 470. 



Var, paludosa, Wils. More robust ; stems and branches 

 longer ; branches erect : leaves larger, sjn-eading-open, less 

 crowded : capsule longer, cylindrical. — X. paludosa, Hedw. 

 Muse. Frond, iv. 1, t. 1. 



Hab. Roots and trunks of trees and bushes, in wet places and borders 

 of rivulets; not rare. Oregon {Hall). 



2. L. obscura, Hedw. Monoecious: plants small, loosely 

 and widely intricate, cespitose, dark green ; stems prostrate, 

 subpinnately divided ; branches erect and compressed : leaves 

 open-erect, loosely incumbent, ovate at base, narrowed above 



