OF WESTERN" PENNSYLVANIA 207 



6. Fontinalis novae-angliae Sullivant. 

 (Plate XXX) 



Rather bright green, fairly firm : stems usually 3-4 dm. 

 long, wiry, purplish-black, slender, rather freely branching, 

 naked below but quite densely foliate towards the apex; leaves 

 rather close, somewhat appressed, thin, entire, sometimes faint- 

 ly serrulate at apex, the main branches with leaves about 2-2.5 

 mm., broad when moist, the branches more or less linear-at- 

 tenuate : leaves about 3-4.5 mm. long, broadly ovate-lanceolate, 

 concave, the margins somewhat revolute, the apex cucullate, 

 rounded-obtuse; median leaf-cells linear-vermicular to some- 

 what narrowly linear-oblong, prosenchymatous, incrassate, 

 about 6-15:1. the alar cells forming a quite distinct group. 

 quadrate to oblong, moderately enlarged, somewhat incrassate 

 and colored ; capsule sub-cylindric to oblong-oval, near base of 

 stern, closely invested by the ovate-sub-orbicular perichsetial 

 leaves, which are lacerate when old, capsules rare ; peristome- 

 teeth colored, linear-lanceolate, 18-20-articulate, slightly papil- 

 lose ; cilia tessellate and united at apex only, minutely papillose ; 

 spores smooth. 



In brooks and swift-running streams from Newfoundland 

 to Ontario and North Carolina, but seldom found in our 

 region. 



Crawford : Linesville, August 4, 1909. O. E. J. 



Westmoreland: Creek below Hillside Station, September 



17, 1909. O. E. J. and G. K. J. ( Figured). 



Huntingdon : Spruce Creek, T. C. Porter. (Porter's 



Catalogue). 



7. Fontinalis lescurii Sullivant. 



Loose, soft, green to glossy golden-green : stems long, 

 reaching sometimes 3 or 4 dm., naked and blackish below, 



m 



dividing and branching irregularly except sometimes at the 

 apex, where the branches may be arranged pinnately ; leaves 

 erect-spreading, soft, obscurely three-ranked, concave, clasp- 

 ing at the base, lance-ovate to lance-oblong and rather slender- 

 ly acuminate, acute to somewhat obtuse, slightly denticulate 

 at the apex, usually about 4-6 mm. long; median leaf-cells 

 about 12-15:1, elongate-linear, flexuous, the apical and basal 

 shorter and broader, the angular enlarged oblong, inflated, 

 forming quite distinct auricles ; perichsetia numerous towards 

 the base of the stems, r>erich?etial leaves sheathing, the inner 

 rounded-obtuse, broadly ovate, reaching nearly to the apex of 

 the mature capsule: capsule short, sub-cylindric, enclosed by 

 the closely folding perichsetial leaves until almost mature, about 

 2.5:1; lid long-conic; peristome-teeth red-orange, papillose, 

 about 20-25-articulate, the inner peristome more or less com- 



