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nt ‘Il. Selania Lindberg. "ra 
3.D.glaucescens Hedwig. — Trichostomum : Hedw.; Ditrichum 
Hampe; Leptotrichum Hampe; Schimper; Selania esesiá Lindb.; 
Ditrichum montanum Leiberg bull. Torr. club 1893. 
Leaves sublinear or narrowly ovate-lanceolate acute. serrulate 
above, patent when dry; cells gen. short-rectangular or quadrate; 
costa pereurrent. Capsule oblong-cylindric straight sulcate when 
dry; teeth purple, remotely nodose above; pedicel yellowish red. 
Tufts not high. — Earth on rocks princ. in alps not r. Eur. 
Sweden, Norway, Switzerl.! Austria: Venturi. Amer. Can.: J. 
Macoun. Alaska: J. M. Macoun. Greenl: Vanhoeffen. 
III. Leptotrichum Hampe; Schimper. 
1. Xanthopodia. : 
À. Leaves gradually narrowed from ovate or lanceolate base, 
denticulate above. 
4.D.pallidum Schreber. — Bryum Schreb.; Ditrichum Hampe. 
Leaves often dentieulate to middle; upper cells long linear; 
upper basal cells suboblong; costa broad not well-defined. Cap- 
sule suboblong; annulus revoluble; lid rostellate; pedicel often 
very long. Tufts low and glossy. — Rocks and stone-walls 
gen. r. Hur. princ. in southern districts. Switzerl.! Germany: 
Herpell. France: Husnot. Amer. Can.: Macoun. U. 8. Sawyer, 
com. Cardot. 
5.D.Sehimperi Lesquereux. — Leptotrichum Lesq.; Sulliv. icon. 
. muscor.; Ditrichum Kindb. 
Differs from the last: Leaves longer and nearly entire; costa 
narrower. Capsule smaller and less suleate; pedicel less long; 
teeth indistinctly articulate; peristomial tube orange more distinct; 
spores much larger. — Wet earth and rocks r. Amer. Pacif. 
distr. Can.: Can. Macoun. U. S.: Bolender, com. Renauld; 
Howell, com. Cardot. 
*D.flexifolium Renauld et Cardot. — Trichodon Ren. et C.; 
-Ditrichum Kindb. . 
Leaves less long and more flexuous; upper cells shorter. Tufts 
green. Capsules unknown. — Sandy soil r. Amer. Us Sa: 8a- 
wyer, com. Cardot. : 
» Ditrichum Breidleri Limpricht (plant hybrid ?) — Agrees 
With D. pallidum in shape of leaves and in yellow pedicel. 
Differs from it: Plants scarcely 4 m. m. bigh, stem 1 m. m. 
Capsule oval not striate; lid obtuse subpersistent; teeth short 
Small brittle; annulus not distinct; pedicel thick not much ex- 
Serted above upper leaves. — On wet earth. Eur. Austria, in 
