﻿252 Grout: A 



Hyp mini myosuroides stolonift 



185 1. 



Hypnutn spieuliferum Mitt. Journ. Linn. Soc. 8 : 34. 1865. 



Hypiuim acutiatspis Mitt 1. c. 



//, 



1 9. 1 894. 



hothecium obtusatulum Kindb. Can. Rec. Sci. 1894: 19. 1894. 

 (Roell 1 17, Vancouver). Fide Cardot, Rev. Bryol. 35 : 310. 1896. 



Gametophyte in wide, soft, loosely intricate tufts, light green to 

 brownish green, often glossy ; primary stems slender, long-creep- 

 ing, radiculose, furnished with minute distant leaves ; secondary 

 stems dendroid, suberect, 5 cm. or more long, very much 

 branched ; branches two or three times divided, of varying length, 

 often long-flagelliform, branches and branchlets inclined to one 

 side ; branch leaves varying greatly in habit, spreading to loosely 

 imbricate when dry, sometimes subsecund, 1.5-2 x 0.3-0.4 mm., 

 oblong-lanceolate to ovate-lanceolate, acuminate with point often 

 twisted to the right, serrulate below, coarsely serrate above, smooth 

 or papillose on the back by the thickened angles of the cell walls, 

 margins often slightly revolute below; costa extending to the 

 middle or beyond, often ending in a spine on the back ; median 

 leaf-cells linear, rather thick-walled, 7-10: 1; alar cells round- 

 quadrate, incrassate and indistinct ; apical leaves of branchlets at- 

 tenuate ; leaves of creeping stems scale-like, 0.7 mm. long, nar- 

 rowly acuminate, subdenticulate, costate to the middle ; leaves of 

 erect stems like those of creeping stems onlv larger with costa 

 sometimes forking, gradually enlarged and elongated above where 

 they approach the branch leaves in shape and size ; leaves of the 

 nagellae distant, slender, lanceolate, often very long-acuminate, 

 serrate : dioicous ; the inner perichaetid leaves with broad sheath- 

 ing bases and long-acuminate squarrose apices, serrate above or 

 nearly entire ; costa thin, sometimes wanting ; paraphyses very 

 numerous, long, composed of two or more 1 jws of cells at base. 



^porophyte much as in E. myosuroides; capsule ovoid, 2-2.5 mm. 

 long, 2.5-3.1. r ■ * 



Type locality, western part of western North America ; Men- 

 zies, 1787. 



On the ground, trees, and rocks in woods. Apparently com- 

 mon on the Pacific coast. Alaska, Miss Cooley ; Colorado. 

 Shockley. 



Illustrations. Brid. /. c; Hook. /. c. 



ExsiCCATl. Macoun Can. Muse. 292 in part, 291 (Isotlnrinm 



oides}. 



{Hypninu spiculifcntm), 656 (Isothccium ph 



