176 American Midland Naturalist Monograph No. 6 



In rapidly flowing streams, occurring from Greenland to Georgia, Tennes- 

 see, and Wisconsin; also in Europe. 



Cameron Co.: On rocks in bottom of creek 3 mi. w. of Truman. June 22, 1935, 

 and Tannery School, Sept. 1, 1935. Sidney K. Eastwood. Centre Co.: In swiftly run- 

 ning mountain-stream about three miles south of Boalsburg, Sept. 22, 1909. Sterile. 

 O.E.J, (figured); Bear Meadows. T. C. Porter. (Porter's Catalogue); Stream, Tussey 

 Mt., near Shingletown, O.E.J. July 15, 1909. Fayette Co.: Sheepskin Run, one-half 

 mi. e. of Ohio Pyle. C.M.B. Nov^ 6, 1943. Somerset Co.: Clear Run, Shafer Run, 

 and Blue Hole Creek, all Laurel Ridge, various dates. C.M.B. Venango Co.: On sub- 

 merged rock in creek near St. George. Aug. 4, 1935. Sidney K. Eastwood. Westmore- 

 land Co.: On rocks in swift water. Rock Run, Laurel Mts., Aug. 31, 1925. O.E.J, and 

 G.K.J.; Fish Hatchery trough. Rector. W. R. Witz, April 4, 1937; Rock Run, Forbes 

 Forest. C.M.B. Sept. 16, 1934. 



5. Fontinalis novae-angliae SuIIivant 

 Plate XXXIV 



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, some- 

 times faintly serrulate at apex, the main branches with leaves about 2-2.5 mm, 

 broad when moist, the branches more or less linear-attenuate; 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 somewhat 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 stem, closely invested by the ovate-sub-orbicular perichaetial 

 leaves, which are lacerate when old; capsules rare; pristome-teeth colored, linear- 

 lanceolate, 18-20 articulate, slightly papillose; cilia tessellate and united at 

 apex only, minutely papillose; spores smooth. 



In brooks and swift-running streams from Newfoundland to Ontario and 

 North Carolina. 



Butler Co.: On rocks in swift stream, 5 mi. north of Zelienople. Oct. 3, 1925 and 

 4 mi. n.e. of Harmony, May 3, 1930. L. K. Henry; Walley Mill, Parker Twp. July 14, 

 1935. Sidney K. Eastwood. Clearfield Co.: In rapid stream north of Mahaffey, May 

 30, 1937. Sidney K. Eastwood. Fay'ette Co.: Cucumber Run, Ohio Pyle. July 18, 

 1895. C.M.B. Forest Co.: Buzzard Swamp, June 30, 1948. C.M.B. Huntingdon 

 Co.: Spruce Creek, T. C. Porter. (Porter's Catalogue). Venango Co.: Submerged 

 rocks in stream near St. George. Aug. 4, 1935. Sidney K. Eastwood. Westmoreland 

 Co.: Creek below Hillside Station, September 17, 1909. O.E.J, and G.K.J, (figured). 



6. Fontinalis hypnoides Hartman* 



Rather delicate, soft, slender, pinnately divided plants; leaves distant, flac- 

 cid, narrowly lanceolate to lance-ovate, gradually acuminate, 3-6 mm long, 

 usually entire; median leaf cells linear attenuate to linear-rhomboidal, the alar 

 more or less enlarged but indistinct, not forming distinct auricles; capsule about 



* The( descriptions of F. hypnoides, nitida, and jiaccida have been largely compiled 

 from Welch's treatment in Grout s Moss Flora. 



