— fiO — 



1 .P.intricata Hedwig. — Pterigynandrum H.; Pylaisia Srliim- 

 per; Sulliv. icon. m. 



Leaves long-aouminate ns. faintly recurved; perichetial subli- 

 nearlanceolate not plicate, the inner with short subulate point. 

 Lid of capsule with short oblique beak. Branches crowded. 

 Tufts green. — Trees and logs. Amer. not r. Can.: Macoun. 

 U. S.: Sullivant, com. C. Mueller. Eur. r. »Russia near river 

 Svir»: Eifving. 

 '2.P.ontariensis C. M. et Kindb. cat. Canad. m. 



Differs from the last: Leaves more recurved and shorter 

 acuminate; perichetial plicate ovate-oblong short-acuminate or 

 obtusate. Peristomial teeth broader; lid obtuse. Branches less 

 crowded. Tufts often dark green. — Trees. Amer. Can. eastern 

 distr. not r: Macoun; Moser. 



B. Leaves with short base; cells dilated. 

 o.P.Selwyni Kandb. in Ottawa Naturalist II. 



Leaves subovate us. recurved to the short acumen; cells gen. 

 suboblong. Perichetial leaves not plicate, ovate oblong long- 

 acuminate often filiform-pointed. Capsule broad-oval; lid obtuse. 

 Branches crowded. Tufts dark green or brown. — Trees r. 

 Amer. Can.: Macoun; Dearness and ^\'hite. U. S.: Roell. 

 4.P.cyrtophylla Kindb. n. sp. 



Leaves broad-ovate gen. obtusate obtuse, not or slightly re- 

 curved; cells oval, larger than in the 3 last species. Branches 

 crowded. Tufts green. Capsules unknown. Old logs r. iiwter. 

 Can. Peace river: Macoun 1872. 



2. Polyanthoideae. 



A. Leaves distinctly denticulate. 

 o.P.heteronialla Bruch et Schimper. 



Leaves larger than in P. polyanthos; inner basal cells (at 

 insertion) suboval not j'ellow, the others Unear-lanceolate exc. 

 the alar. Stem-leaves ovate-oblong filiform-pointed not recur- 

 ved; branch-leaves shortly acuminate-subulate. Capsule oval- 

 oblong; teeth dark yeUow; cilia none; lid subobtuse. Branches 

 us. curved and yellowish. — Trees and stones r. Amer. Can.: 

 Macoun. 

 6.P.pseudo-platj'gyriura Kindb. cat. Canad. m. 



Leaves ovate-lanceolate long-acuminate filiform-pointed, often 

 recurved to acumen; inner basal and alar cells orange, the 

 others sublinear. Capsule subcylindric pale with dark red 

 border at mouth; peristome pale; segments widely open in 

 middle, basal membrane low; lid short-pointed. Tufts brown- 

 green. — Logs r. Amei\ Can.; Macoun. U. S.: Roell. 



