= eee 
Stem brown-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.asprella Schimper. — Leskea Sch; Thelia Sull. ie. m. — 
Stem brown-tomentose; branches short more or less distant, 
not unilateral; paraphyllia present. Leaves fimbriate with bi- - 
furcate cilia. Capsule cylindric-oblong; teeth long; pedicel not | 
long. — Trees r. Amer. Can.: Macoun, U. S.: Roell; Austin, - 
com. Macoun. ; 
5.T.Leseurii Sullivant icon. muscor. : 
Stem not tomentose; branches unilateral elongate crowded or | 
distant; parapbyllia 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. Pterygynandrum Hedwig. | 
1.P.filiforme 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, subovate or obovate, often short | 
acuminate. Branch-leaves ovate-oblong obtusate subobtuse us. — 
very papillose. Capsule oblong-cylindric; 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! Amer. not 
common. Can.: Macotiti; Waghorne. 
"R. papillosulum C. M. et Kindb. cat. Canad. m. : 
Differs in leaves neither striate nor decurrent, appressed when 
dry and not glossy; the younger subhyaline nearly smooth 
short-acuminate acute. Capsules unknown. — Rocks r. Amer 
Can. Rocky mts: Macoun. 
*P.decipiens Weber et Mohr. — Neckera W. M.; Pterygynan- 
drum Lindb. ; 
Leaves indistinctly decurrent, not striate, gen. obtusate, ap- 
pressed when dry and not glossy; those of stem less recu 
Branches thicker. Very r. fruiting. »Endostomial segments 
as high as teeth»: Limpricht. — Rocks princ. in colder distr 
Eur. not r. Sweden, Norway, Switzerl.! Amer. r. Can.: Waghorne. 
