Hypnum.] BRYACE^. 353 



Hab. California [Bigeloio, 1854). 



Similar to the European H. crassinervium, differing especially in the 

 scarioiu leaves with a shorter hlunt point, the costa not tliiolc, and the 

 areolation lons^er and narrower, the perichaetial leaves ecosLate, and the 

 capsule longer and ohlong-cylindrical. 



74. H. piliferum, Schi-eb. Plants irregularly and loosely 

 cespitose ; stems long, ilexuous, prostrate, irregularly branching, 

 subpinnately ramulose, without radicles: leaves somewhat loose, 

 erect, open, ovate-oblong, abruptly narrowed into a long narrow 

 flexuous point, concave, the basilar angles long, decurrent, pel- 

 lucid; the border minutely serrulate all around; perichaetial 

 leaves squarrulose, subecostate : capsule long-jDedicellate, oval- 

 oblong or cylindrical, arcuate, constricted under the orifice and 

 very arcuate when emj)ty ; operculum large, with a long 

 incurved beak from a high convex base ; peristome large ; teeth 

 long; segments long-subulate ; cilia two or three, slender, nearly 

 as long as the segments, not appendiculate. — Spicil. Fl. Lips. 

 91 ; Hedw. Muse. Frond, iv. 35, t. 14 ; Sulliv. Mosses of U. 

 States, 105, Earhynchium piliferum, Bruch & Schimp. Bryol. 

 Eur. t. 531. 



Hag. Meadows, borders of woods; rare in fruit. 



75. H. prgBlongum, Linn. Much like the last, differing 

 in its wide flat loose bright or dark green mats, the stems very 

 slender, jirostrate their whole length, the leaves serrulate all 

 around, the perichaetial very narrowly costate, the segments 

 perforated and not split oi)en, and the cilia appendiculate. — 

 Spec. PI. 1125; Pledw. 1. c. 7G, t. 29. Hhyvchostegiinn prce- 

 ^o??Y7?«??, DeNotaris, Briol. Ital. 86. Eurhynchiiwi prailo)i[/iim, 

 Bruch & Schimp. Bryol. Eur. t. 524. 



Hab. British Columbia (Lyull), as quoted by Mitten, who makes it 

 the equivalent of //. Stokesil. 



A species very difficult to separate from //. Jdans. which appears to be 

 an American variety of it. The true II. prailongum has scarcely been 

 found on this continent; at least we have seen nothing referable to it. 



76. H. Sullivantii, Spruce, Ms. Plants small, densely 

 cespitose or loosely intricate, pale green, dirty yellow below ; 

 stems slender, subfastigiately ramulose, the branchlets erect : 

 leaves erect, narrowly ovate-lanceolate, long-acuminate, concave 

 and recurved on the borders at base, sparsely papillose on the 

 back, costate to above the middle ; cells minute, flexuous, linear, 

 obtuse, those of the angles subquadrate; perichaetial leaves 



