BARNES NORTH AMERICAN MOSSES. 267 



long bristle point: seta straw colored, finally red, twisted to right below 

 and to left above; capsule slightly inclined, obovate, curved, six costate, 

 neck distinct, inflated; annalus compound, of 2-3 rows of cells; lid often 

 longer than capsule, obliquely long rostrate from a broad base; peristome 

 teeth dark purple with yellow thickly papillose points, broad and approxi- 

 mate, bi- or trifid for one-third length; spores brown, papillose. Limpr. 

 Laubm. 1: 359. D. fuscescens longirostre Schimp., and angmtifolium 

 Schimp., Lesq. and James Man. 72. Common on old logs across the con- 

 tinent: United States; Canada; Greenland. 



71. Dicranum fnscescens falcifolium Braith. Densely tufted, deep 

 green, fastigiate; leaves all falcate-secund, flexuous-cirrhate toward apex, 

 shorter and less attenuated to point. Braith. Brit. Moss Flora 1: 153. 

 Washington. 



72. Dicrannm Miqnelonense Ren. and Card. In small, compact, yel- 

 lowish-green tufts: stems dichotomous, radiculose below, 1-3 cm. long: 

 leaves small, short, erect imbricate or slightly incurved, oblong-lanceolate, 

 acute or obtuse, concave, entire or minutely sinuate denticulate at apex, 

 2-3 mm. long; costa vanishing near apex, smooth or scarcely rugose at 

 back; cells smooth, small, short, quadrate or irregularly angular in upper 

 half, rectangular, 1-3 times longer than broad and thin walled towards 

 base, alar lax, large quadrate or sub-hexagonal, brown or yellowish: fruit 

 unknown. Bot. Gaz. 14: 93. 1889. On the ground and on rocks, Mique- 

 lon Island. 



73. Dicranum neglectiini Juratz. Dioicous, male plants small and 

 delicate, densely tomentose: intermediate in habit and characters between 

 D. scoparium and D. Muehlenbeckii : tufts thick, 5 cm. high, faintly 

 shining, sparingly radiculose: stem densely foliate, leaves erect spreading, 

 when dry somewhat curved and twisted, scarcely crispate, brittle, from 

 ovate concave base lanceolate-subulate and tubulose, margin entire, ob- 

 scurely toothed at apex; costa weak, leaf base, percurrent or excurrent, 

 smooth on under side; cells smooth, nearly as in D. scoparium but very 

 thick- walled and profusely pitted, lower elongated -rectangular or linear, 

 upper elongated mixed with quadrate cells: perichaetial leaves tubulose, 

 abruptly narrowed into a subulate point: capsule, lid, annulus, and peri- 

 stome as in D. Muehlenbeckii. Limpr. Laubm. 1:353. On rocks: Ore- 

 gon; Mt. Niblock, Mt. Aylmer and near Hector, B. C. 



74. Dicranuni Mnehlenbeckii cirrhatum (Sch.) B. & T. MS. Similar in 

 appearance to the deep tufted forms of D. conge stum : tufts to 10 cm. high, 

 slightly radiculose, easily falling apart: leaves notse cund, erect-spre ading 

 strongly curved; costa greatest width of leaf; lamina continued to apex, 

 margin and under side of costa toothed; alar cells very small, well-defined, 

 all leaf cells smaller than in D. Muehlenbeckii, slightly thickened, lower 

 rectangular, somewhat porose, above very irregular: seta shorter than in 



