206 A MANUAL OF MOSSES 



papillose, the inner peristome as in F. lescurii; spores minutely 

 roughened. 



In streams in the mountains or hills, northeastern United 

 States. Not reported from our region. 



4. Fontinalis delmarei Renauld and Cardot. 



Dvill green, naked below, much divided: stems and 

 branches irregularly pinnate with rather robust, unequal, 

 obtuse, erect-spreading branches; leaves crowded, erect- 

 spreading, slightly incurved on the borders, very concave, 

 lance-oblong, bluntly acuminate, non-carinate ; median leaf- 

 cells elongate-linear, somewhat flexuous, a few at the angles 

 small, quadrate-hexagonal ; perichsetial leaves with a rather 

 rounded but often lacerate apex : capsule sub-immersed, oblong 

 to oblong-cylindric, lid conic-acuminate ; peristome-teeth lance- 

 linear with about 15-18 articulations, with the divisural distinct 

 at base only, entire, inner peristome with a united lattice work 

 only at the apex, below papillose and with imperfect bars. 



A rather rare species reported from Miquelon and New 

 Jersey but, as we now think, probably not to be expected in 

 our region. 



5. Fontinalis dalecarlica Bryologia Europsea. 



(Plate XXX) 



Stems slender, much-branched, naked below, 1-3 (4) dm. 

 long, attenuate, dark-castaneous, sub-lustrous ; leaves some- 

 what close, erect-spreading to somewhat imbricate, more or 

 less glossy, lance-oblong to narrowly lanceolate, acuminate, 

 2-3 mm. long, often slightly toothed at apex, margins usual- 

 ly somewhat involute, concave, sometimes very slightly 

 auricled at base ; leaf-cells prosenchymatous, rather incrassate, 

 linear-oblong, about 10-18:1, the marginal slightly narrower, 

 the alar rectangular to irregularly quadrate-hexagonal, con- 

 siderably larger, usually slightly colored ; perichsetial leaves 

 apiculate, the apex finally lacerate: capsule immersed, about 

 2 mm. long; peristome orange to brownish, the teeth slender, 

 granulose, with about 14-22 lamellae, the inner peristome with 

 an imperfect lattice; spores muriculate, about .025-032 mm., 

 mature in summer. 



In rapidly flowing streams, occurring from Greenland to 

 Kansas and the Gulf States, also in Europe. Rare in our 

 region. 



Center : In swiftly running mountain-stream about 



three miles south of Boalsburg, Septem- 

 ber 22, 1909. Sterile. O. E. J. (Fig- 

 ured) ; Bear Meadows. T. C. Porter. 

 (Porter's Catalogue). 



