276 BULLETIN OF THE UNIVERSITY OF WISCONSIN. 



annulus indistinct; teeth of peristome rudimentary, yellowish-red, trun 

 cate, papillose (?). Limpr. Laubm. 1: 581. — United States, without local- 

 ity, collected by James and communicated by Bescherelle. Bot. Gaz. 14: 

 99. 1889. 



119. Tricliostomum Vancouveriense (Broth.) R. & C. — Dioicous: loosely 

 cespitose, fragile, bright green, shining: stem simple, 3 mm. high, long 

 radiculose below, densely foliate above: leaves twisted when dry, arcuate- 

 inflexed, margin involute.; when moist straight, spreading, nearly plane, 

 linear lanceolate from short base, acute, margin slightly undulate, remotely 

 and obtusely denticulate from below middle upward; costa green, excur- 

 rent; lamina bistratose, chlorophyllose cells round-quadrate, basal cells 

 elongated, hyaline: perichsetial leaves scarcely different: capsule erect or 

 suberect, cylindrical, shining, striate, short-necked; annulus broad, triple, 

 revoluble; peristome simple, pale, tubulose base short, teeth erect, strongly 

 papillose. Timmiella Vancouveriensis Broth. Bot. Centralbl. 4i: 387. 

 1890. — On slightly moist ground: Victoria, Vancouver island. 



120. Desmatodon subtorquescens C. M. & Kindb.— Nearly allied to 

 D. atrovircns Smith {D. nervosus B. & S.), but tufts compact: stem 

 higher (about 1 cm.): leaves green, not dingy, very short, suboval or sub- 

 spathulate, smaller, less opaque; costa neither excurrent nor broader aboTe: 

 capsule cylindric. Mac. Cat. 48. — On earth on exposed cliffs: Gaspe coast. 

 Can. 



121. Desmatodon camptotlieciiis Kindb. — Habit of D. cernuus: plants 

 densely cespitose: leaves long, narrow-lingulate, sub-obtuse, entire or ob- 

 scurely crenulate, faintly papillose, marginate and at base revolute, mu- 

 cronate by excurrent greenish costa: capsule cylindric, arcuate; teeth 

 short, cut into 2 or 4 partly coherent segments; annulus distinct; lid 

 obliquely short beaked; seta flexuous, reddish yellow, spores large. Mac. 

 Cat. 49. — Rocks: Gaspe coast, Can. 



122. Desmatodon cernuus xanthopus Kindb.— Leaves less chlorophyl- 

 lose, costa virescent: capsule larger; teeth more united; pedicel yellow- 

 Mac. Cat. 48. — On earth: Manitoba. 



12.3. Leptobarbula Sch. — Plants small, delicate, gregarious: leaves 

 minute, linear, sparse, strongly verruculose, areolation dense, not carinate: 

 flowers dioicous, male gemmiform, terminal: perichsetium sheathing: calyp- 

 tra long, narrowly cucullate; annulus compound, broad, revoluble; teeth of 

 peristome perfect, loosely one-half twisted; spores minute, smooth. Syn. 

 Muse. Eur. 181. 1876. 



124. Leptobarbula berica Sch.— Dioicous: plants gregarious or form- 

 ing small tufts, bright green: stems very low (1-5 mm.), mostly simple, 

 radiculose only at base: leaves when dry crispate, when moist spreading 

 and somewhat refiexed, thickly warty papillose on both sides and costa; 

 lower leaves distant, lance-subulate, upper gradually longer (.85 mm.)^ 



