BARNES — NORTH AMERICAN MOSSES. 363 



581. Hypnum subflaccum C. M. &. Kindb. — Tufts loose, glossy green: 

 stem green, irregularly branching, not radiculose; branches few and long, 

 flaccid, sub-compressed when dry; paraphyllia none: leaves striate, oblong- 

 lanceolate, denticulate above to ^, not curved, loosely appressed or sub- 

 patent; basal angles hyaline, not excavate; stem leaves short-decurrent, 

 acute or short-acuminate; branch leaves not decurrent, longer acuminate; 

 cells narrow, long-linear, chlorophyllose, basal dilated, hyaline and irregu- 

 lar, sub-rectangular, inner rarely pale yellowish; costa none: dioicous: 

 female plants not found. Mac. Cat. 240. — On earth: Ontario, 



582. Hypnum pseudo-drepauium C. M. & Kindb. — Tufts loose, green, 

 faintly glossy: secondary stems very long, flaccid, sub-pinnate, sparingly 

 radiculose, faintly compressed; paraphyllia none; branchlets lew and very 

 short, curved at apex: leaves plicate, entire, from a short broad ovate 

 base narrowed into a short incurved acute acumen, crowded, loosely ap- 

 pressed when dry, not decurrent, not distinctly chlorophyllose; basal cells 

 hyaline, dilated, thick-walled, alar large, sub-rectangular, well-defined, 

 others longer and narrower; auricles excavate; costa indistinct or short 

 and double: dioicous; female plants not found. Mac. Cat. 240. — On old 

 logs in woods: Ottawa, Ontario. 



5S3. Hypnum circulifolium C. M. & Kindb. — Nearly allied to^. dila- 

 tatum Wils.: stem loosely foliate, denudate at the base; leaves patent 

 when dry, sub-circular, faintly crenulate nearly all around, slightly decur- 

 rent, at the cordate base distinctly auriculate, in the middle carinate, nar- 

 rowed above to an indistinct obtuse tip; alar cells large, inflated, sub-oval, 

 apical also short, others narrow and flexuous; costa none or indistinct: 

 barren. Mac. Cat. 242. — On rocks: New Brunswick. 



584. Hypnum pseudo-arcticum Kindb,— Differs from //. arcticum 

 in leaves crenulate, at least above middle; costa short and double, not 

 reaching to middle; perichtetial leaves short acuminate, serrulate: peri- 

 stomial segments rimose in middle: stem sparingly radiculose. Mac. Cat. 

 242. — On stones in brooks: British Columbia. 



585. Hypnum Goulardi Sch. — Tufts thick, very soft, variegated with 

 red and green: branches flexuous-erect from a prostrate filiform eradicu- 

 lose and partly denudate stem, very slender, soft, not radicant, sub- 

 simple or oft divided, 2-4 cm, long; leaves small, rather distant, equally 

 spreading when moist, coherent when dry; lower branch leaves minute, 

 circular, others ovate-rotund, apex rounded or slightly obtuse pointed, 

 strongly concave and sub-cochleariform, margin rather broadly recurved, 

 quite entire, narrowly decurrent at angles, not excavate; costa bifurcate, 

 long or almost obsolete; cells at apex rhombic, toward base flexuous fusi- 

 form, sub-vermicular or hexagonal-rhombic, at base loosely rhombic-hexag- 

 onal, at angles rectangular: flowers and fruit unknown. Syuop. Muse. 



