— 139 — 



short-conic not rostellate. Leaves often short-acuminate; alar 

 cells large, basal not brown. Often fruiting. Leaves larger 

 than in the last. 

 46.H.fertiIe Sendtner. 



Stem brown or brown-red; paraphyllia narrow. Leaves re- 

 curved below; alar cells somewhat numerous finally hyaline on 

 a short triangular space, inner lower basal gen. pale yellow. 

 All leaves entire or denticulate only above, from ovate base 

 nearly gradually narrowed; those of branches filiform-pointed. 

 Capsule Buboblong arcuate not striate; teeth yellow above, brown 

 below; cilia not appendiculate; lid short-pointed. Monoecious. 



— Earth and logs in woods r. Eur. Germany (Wuerttemberg)!; 

 Milde. Switzerl.: Roell. Norway: E. Nyman 1893. Amer. Can.: 

 Waghorne. U. S.: Roell. 



47.H.canaden8e Kindb. in bull. Torr. club XVII. 



Stem gen. green; paraphyllia sometimes broad. Leaves gen. 

 not recurved; alar cells very few (one or two) hyaline impressed 

 below the arrounded basal angles, inner basal (at insertion) 

 finally dark-yellow. Stem-leaves entire or at acumen indistinctly 

 sinuolate, from ovate-oblong base gradually narrowed to a short 

 acumen, sometimes striate. Branch-leaves ovate-lanceolate den- 

 ticulate nearly all around. Capsule subovate or arcuate finally 

 striate; teeth orange; cilia us. appendiculate; lid muticous. 

 Dioecious. — Logs. Amer. not r. Alaska: J. M. Macoun. Can.: 

 J. Macoun; Moser; Waghorne. U. S.: Prof. A. G. Wetherby. 

 4. CaUichroidea. 



A. Leaves denticulate. Stem creeping; paraphyllia numerous. 

 Monoecious. 

 48.H.circinnale Hooker. 



Leaves marked with orange stripes, red at insertion; lowest 

 basal cells suboval, alar red subquadrate somewhat large on a 

 nearly round space, the others linear. Stem-leaves nearlj' entire 

 from ovate-oblong base tapering to a shorter acumen; branch- 

 leaves ovate-lanceolate serrulate above, nearly entire near base. 

 Capsule suboval or subobovate; teeth orange; segments pale yellow; 

 lid apiculate; pedicel often longish. Stem red; branches plu- 

 miform. Tufts yellowish or green. Habit of H. molluscum. 



— Logs r, Amer. Pacif. distr. less r. Can.: Macoun. U. S.: Hen- 

 derson, com. Cardot. Eur. »Irel.»: Cardot in revue bryol. 

 49.H.Sequoieti C. Mueller. 



Leaves narrow ovate-lanceolate long-acuminate often denticulate 

 below and serrulate above, yellow at insertion; alar cells few 



