182 A MAXL'AL OK MOSSES 



about 3 mm. long, linear-oblong, obtuse, somewhat concave, 

 crisped when dry ; costa broad, nearly reaching apex ; peri- 

 chsetial leaves 4-7 mm. long, lance-linear, the costa one-third the 

 width of the leaf at base, brownish-yellow, excurrent as a 

 spinulose arista which often reaches one-half the whole length 

 of the leaf, the apex of the lamina acute and entire or incised ; 

 cells at base of the stem-leaves and of nearly the whole lamina 

 of the perichaetial leaves hyaline, thin-walled, irregularly 

 elongate-rectangular to hexagonal, the costa in the lamina of 

 the perichsetial leaves being bordered on either side by several 

 rows of smaller, chlorophyllose, quadrate, and somewhat 

 opaque cells, the lamina of the stem-leaves also being opaque 

 with very small round-hexagonal cells : capsule 4-6 mm. high, 

 ventricose, ovate-conic, yellowish-green ; operculum acute-conic ; 

 calyptra small but covering the operculum ; annulus and outer 

 peristome more or less rudimentary ; inner peristome conic, 

 whitish, membranaceous. papillose, 16-carinate ; spores moder- 

 ately thick-walled, .007-.010, papillose, mature from mid- 

 summer to early fall. 



On moist, shaded banks, earthy hillsides, etc. Widely 

 distributed in the Northern Hemisphere. In North America 

 from Nova Scotia to Ontario, south to Alabama. Not un- 

 common amonsr the mountains and hills of our recrion. 



o o 



Center : Tussey's Mt., Shingletown, July 15, 1909. 



O. E. J. 

 Fayette : Along wooded roadside bank, slope of 



Sugar Loaf Alt., September 1-3, 1906. 



(Figured), near Lovers' Leap, Ohio 



Pyle, September 4, 1906. O. E. J. and G. 



K. J. ; Ohio Pyle, May 30, 1908. O. E. J. 



Westmoreland : Roadside bank, "Rachelwood," New- 

 Florence, altitude 2,100 ft., September 8- 

 10, 1907. O. E. J. 



2. BCXBAC'MIA Haller, Hedwig. 



Dioicous ; antheridial plants .microscopic on the green 

 protonema ; archegonial plants with a short stein, a few small 

 leaves, and one or two archegonia but no paraphyses : isolated 

 or gregarious, annual : stem barely 1 mm. high, simple, with 

 hyaline rhizoids ; leaves ovate to lance-ovate, the basal por- 

 tion green and its cells growing out into long brown filaments 

 during the development of the sporogonia, finally covering the 

 stem and vaginule with a thick tomentum ; leaf-cells lax, long- 

 hexagonal ; perichsetial and upper leaves soon disappearing : seta 

 5-20 mm. long, thick, red-brown, warty, the central strand 

 being surrounded by an air-space; capsule obliquely ascend- 

 ing, the upper surface flattened, the urn brownish and with a 



