— 24 — 



Stem bro^vQ-tomentose; branches unilateral crowded; para- 

 phyllia none. Capsule suboblong; teeth short; segments none; 

 endostomial membrane low; lid not rostrate; pedicel shorter 

 than in T. hirtella. — Trees r. Amer. Can.: Macoun; Moser. 



B. Leaves glaucous green; their cilia split. Lid of capsule 

 rostrate. Endostomial segments distinct; basal membrane elevate. 

 4.T.aspvelia Schimper. — • Leskea Sch.; Thelia Snll. ic m. 



Stem brown-tomentose; branches short more or le.?s distant, 

 not unilateral; paraphyllia present. Leaves fimbriate with bi- 

 furcate cilia. Capsule cj'lindric-oblong; teeth long; pedicel not 

 long. — Trees r. Amer. Can.: Macoun. U. S.: Roell; Austin, 

 com. Ma<oan. 

 o.T.Lescurii Sullivant icon, muscor. 



Stem not tomentose; branches unilateral elongate crowded or 

 distant; paraphyllia none. Leaves not fimbriate, sometimes 

 obtusate obtuse; cilia divided in 2, 3 or 4 lobes. Capsule cy- 

 lindric; teeth not long; pedicel longer than in the last. — Sandy 

 ground or rocks r. Amer. U. S.: Austin, com. Macoun. 



25. Pterygynandniui Hedwig. 

 LP.flliforiue Timm. — Hypnum T.; Pterigynandrum Hedw. 



Leaves recurved below, serrulate above, often striate, us. de- 

 current and not appressed; upper cells oblong, lower linear- 

 lanceolate; costa reaching to middle or shorter. Stem-leaves 

 recurved nearly all around, Bubovate or obovate, often short- 

 acuminate. Branch-leaves ovate-oblong obtusate subobtuse us. 

 very papillose. Capsule oblong-C3'lindric; teeth hyaline or yello- 

 wish; segments short. Stem us. denudate at base, in American 

 variety creeping. — Trees and stones. Eur. common princ. in 

 southern distr. Switzerl., Germany, Sweden, Norway! Ainer. not 

 common. Can.: ^Macoun; Waghorne. 

 *P. papillosiihim C. ^L et Kindb. cat. Canad. m. 



Differs in leaves neither striate nor decurrent, apiiressod when 

 dry and not glossy; the younger subhyaline nearly smooth 

 short-acuminate acute. Capsules unknown. — Rocks r. Amer. 

 Can. Rocky mts: Macoun. 



*P.decipien.S Weber et Mohr. — Neckera W. M.; Pterygvnan- 

 drum Liudb. 



Leaves indistinctly decurrent, not striate, gen. obtusate, ap- 

 pressed when dry and not glossy; those of stem less recurved. 

 Branches thicker. Very r. fruiting. »Endostomial segments 

 as high as teeth »: Limpricht. — • Rocks princ. in colder distr. 

 Eur. not r. Sweden, Norway, S^vitzerl.l Amer. r. Can.: Waghorne. 



