Eypnum.] BRYACEiE. 329 



crowded, erect-spreading, soft, broadly cordate, subdecurrent- 

 auriculate at base, abruptly narrowed into a crenulate hyaline 

 piliferous point ; costa whitish, vanishing below the apex ; areo- 

 lation of minute rounded slightly papillose cells ; perichwtial 

 leaves broadly ovate, erose-dentate, long and narrowly acumin- 

 ate, denticulate, narrowly costate, loosely reticulate : capsule 

 small, horizontal, turgid, oblong, pale, on a short rough purplish 

 pedicel ; operculum conical, obliquely rostellate ;" segments 

 yellowish, split ; cilia two ; annulus large, — Muell. Syn. ii. 486. 

 Hah. Cape Disappointment, Washington Territory. 



22. H. crispifolium, Hook. Stems pinnately and bipin- 

 nately much divided, dirty yellow : leaves densely imbricate, 

 yellowish green, opaque, subfalcate-secund ; those of the stems 

 deltoid-ovate, attenuate into a long crispate point, undulate- 

 rugose, soft, thickish, decurrent at base, minutely areolate, 

 strongly nerved ; branch-leaves narrower, ovate-lanceolate ; the 

 perichtetial erect, lanceolate, gradually narrowed to a long flex- 

 uous point, ecostate, serrulate : capsule oval-oblong, horizontal ; 

 pedicel purplish, rough; peristome of Eiirliynchium. — Muse. 

 Exot. t. 31. 



Hab. Shaded ground and roclis, Northwestern America [Menzies)\ 

 Vancouver Island {Wood)\ California (iioZcmder, Waison)\ Fort Colville 

 { Watson). 



23. H. laxifolilim, Schwaegr. Stems long, creeping, pros- 

 trate and rigid ; branches and branchlets bright green : stem- 

 leaves loosely imbricate, open-erect, deltoid, ovate and decur- 

 rent at base, acuminate, serrate or denticulate ; branch-leaves 

 narrower ; costa vanishing in the apex ; pericha3tial leaves 

 oblong, sheathing, erect, long flexuous-acuminate, denticulate at 

 the apex, ecostate : capsule globose-ovate, horizontal on a short 

 red tubercular pedicel ; operculum conical, acuminate ; peri- 

 stome as in the preceding. — Suppl. ii. 1. 159, t. 143; Brid. 

 Bryol. Univ. ii. 464. Leskea laxifoUa, Hook. Muse. Exot. t. 30. 

 Isothecium laxifolmm, Brid. 1. c. 359. 



Hab. Northwest coast of America (Menzies). 



Subgenus V. ELODIUM. 



Stems villous, ascending, 2-3-parted, distantly and pinnately 

 ramulose ; branches subcompressed. Leaves lanceolate-acumi- 

 nate, striate, not i:)apillose ; areolation elongated, rhomboidal ; 



