BARNES NORTH AMERICAN MOSSES. 331 



sub-canaliculate; cells of angles dilated, oblong, yellowish or sub-hyaline; 

 others linear, narrow, attenuate, subflexuous, walls delicate; perichsetial 

 leaves broad oval oblong, slightly narrowed above, entire or finally more or 

 less lacerate, and sometimes plicate at summit: capsule immersed, narrow, 

 cylindric; lid conic, elevated; peristome purple, teeth narrowly linear acu- 

 minate, sometimes cohering in pairs at summit, papillose, entire or per- 

 forate along middle line; endostome very rudimentary, with complete 

 transverse bars, cilia muricate, simply appendiculate. Monog. des Fon- 

 tin., 1. c., 120. New Jersey. 



395. Fontinalis dichelymoides Lindb. Plants somewhat shining, yel- 

 lowish above, dark brown at base, having the external appearance of Di- 

 chelyma or certain submerged forms of Hypnum fluitaus and JEf. Kneif- 

 fii: stems slender, flexuous, not or slightly naked at base, more or less regu- 

 larly pinnate; branches distant, erect, spreading, more or less elongated, 

 sub-attenuate and often slightly curved at summit: leaves scattered, erect 

 spreading or sub-secund, narrowly lanceolate, incurved at border, canalicu- 

 late, long acuminate, acute, entire; cells of angles dilated, oblong, sub- 

 rectangular or sub-hexagonal, hyaline or yellow, forming quite distinct 

 auricles; others linear, flexuous, attenuate, very narrow: fructification un- 

 known. Monog. des Fontin., 1. c., 122. Growing on submerged rocks. 

 Lake Vermillion, Minn. 



396. Fontinalis fl liformis tenuifolia Card. Still more delicate than 

 type, plumose, pale green: leaves very distant, more elongated, very soft 

 when moist, rigid when dry: sterile. Monog. des Fontin., 1. c., 126. 

 Louisiana. 



397. Fontinalis Langloisii Card. Plants slender, delicate, slightly 

 rigid, dirty green or dark at base, yellowish above: stems delicate, flex- 

 uous, naked and black below, pinnate and sub-bipinnate; branches dis- 

 tant, distinct, very delicate, plumose, cuspidate: leaves very distant, sub- 

 rigid when dry, erect-spreading or sub-imbricate, narrowly lanceolate, 

 tubulose or sub-tubulose, generally cucullate, sub-obtuse or obtuse, rarely 

 acute, nearly entire or slightly denticulate at summit; cells at angles a lit- 

 tle dilated, oblong, greenish or sub-hyaline; others linear-rhombic, with 

 delicate walls: fructification unknown. Monog. des Fontin., 1. c., 126. 

 Louisiana. 



398. Dichelyma capillacenm elongatnm Kindb. Stems more elon- 

 gate, branches more distant, leaf base longer than excurrent part of costa. 

 Mac. Cat. 160. North of Lake Superior. 



399. Neckera Menziesii amblyclada Kindb. Stems densely pinnate; 

 branches obtuse, rarely attenuate and flagelliferous: leaves shorter, sub- 

 oblong. Agrees with the common form in the paraphylliferous stem. 

 Barren. Mac. Cat. 162. Rocky Mountains, B. C. 



