— 36 — 



lid not seen. Tufts loose green or brown-green. Stem bipin- 

 nate; branches numerous not julaceous, often with short fla- 

 gellse. — Rocks r. Amer. Can. Vane, isl.: Macoun. 



B. Leaves gen. long-acuminate, ovate-oblong or ovate-lanceo- 

 late; costa thick gen. long. Stem irregularly pinnate. Leaves 

 somewhat large. 



S.I.thamnioides Kindb. n. sp. — »I. aggregatum» Kindb. cat. 

 Can. m. 



Stem-leaves denticulate below, serrate or twice serrulate above; 

 upper cells rhombic or rhomboidal. Branch-leaves serrate nearly 

 all around; upper cells lanceolate-linear, middle and lower sub- 

 linear, alar disposed on a short space. Perichetial leaves ser- 

 rate. Capsule cylindric inclined or slightly curved; lid short- 

 acuminate; teeth yellow; cilia short appendiculate. Tufts loose 

 glossy green. Branches long-attenuate nearly crowded not jula- 

 ceous. — Rocks r. Amei'. Can. Brit. Col. and Vane, isl.: Ma- 

 coun. 

 9.1.aggregatum Mitten. — Hj'pnum Mitt.; Isothecium Kindb. 



» Lower leaves spreading broadly hastate ovate-acuminate 

 subecostate; those on the middle of the branches broadly ovate; 

 those near the top costate-acuminate subjulaceous imbricate 

 serrulate toward the acute apex. Perichetial leaves ovate-lanceo- 

 late acuminate nerved to middle, serrate and reflexed at apex. 

 Capsule cj-lindrical irregular inclined; lid conical acuminate; 

 segments narrow (?); cilia solitary short. The author compares 

 it, on account of the julaceous imbrication of the leaves, to 

 some states of Pterogonium gracile, while other stems have a 

 resemblance to Hypnum myunun. — Amer. Vane. isl. and Brit. 

 Col.»: Lesq. et Jam. man. 

 lO.I.Hoivei Kindb. revue bryol. 1895. 



Leaves entire below middle, serrate above, often filiform-poin- 

 ted; areolation as in I. Breuer-r, costa vanishing near middle. 

 Capsule erect subcylindric. Branches crowded subjulaceous 

 somewhat long and numerou.s. Tufts dirty green not glossy. 

 — On decaying branches r. Amer. U. S. California: Marshall 

 A. Howe. 



2. Myosuroidea. 



A. Middle and lower inner leaf-cells linear, alar finallj' 

 yellowish. Branch-leaves not striate. Lid of capsule acute or 

 short-rostrate. Stem often distinctly tree-like. 

 ll.I.niyosuroides L. — Hypnum L.; Isothecium Bridel; Eu- 

 rhynchium Schimper. 



