— 369 — 
late above; lid small subacute.  Dioecious. Habit of B. subro: 
tundum. — Rocks in arctic districts r. Amer. Alaska: Krause»: 
C. M. in Flora 1887. | MEME. i 
II. Pachylophus Kindb. . 
l. Argenteiformia. 
A. Leaves gen. obtusate; costa (exc. B. nitidulum) not ex- . 
current, 
a. Leaves sparingly chlorophyllose, silver-glossy, not reflexed, 
not r. with hairpoint. Tufts low. 
97.B.argenteum L. 
Leaves subovate often apiculate; costa subhyaline not or t. 
confluent with hairpoint. Capsule oval-oblong strangulate blood- 
red or pale red. — Bare earth, stones and roofs. Eur. com- 
mon. Sweden ete.! Amer. not r: Can: Macoun. U. S.: Langlois, 
com, Cardot. 
b. Leaves distinctly chlorophyllose, not reflexed. Capsules 
unknown. 
98.B.veronense Notaris — Argyrobryum virescens Kindb. 
Laubm. S. u. N. u 
Leaves broad-ovate or ovate-oblong, obtuse, reddish at base; 
cells rhombic shorter than in B. argenteum; costa yellow abbre- | 
viate. Branches subclavate pale green. Tufts sometimes 2—8 
c. m. high. — In water on stones and sand r. Eur. Norway!; 
Kaurin. Amer. Labrador: Waghorne. his 
€. Leaves chlorophyllose, more or less reflexed. 
99.B.Blindii Br. eur. — B. Kiszrii Lindb. 
Leaves oval-oblong subobtuse: only uppermost (narrowly) 
reflexed. Capsule blood-red obovate; cilia sometimes not appen- 
diculate. Dioecious. — Wet sand prine. by rivers, r. on rocks, 
r. Eur, Norway; F. Kier. France: Boulay. Amer. Can.: Ma- 
coun. visis ; - 
* B.oblongum Lindberg. 
Leaves more obtuse. Capsule sometimes suboblong. — Wet 
sand r. Eur. Norway Kaurin. Finl.: Brotherus. 
100.B.teres Lindberg. | ; 
Leaves broad-ovate obtuse: only uppermost apiculate and 
reflexed. Capsule pale brown suboblong; cilia appendieulate; 
pedicel about 1 €. m. long. Resembles somewhat B. calophyl- 
lum. — "Arctic district r. Eur. Spetsbergen: Berggren. 
101.B.bulbifolium Lindberg. | 
»Leaves ovate obtuse with deflexed point: only uppermost 
reflexed. Capsule brown-red obovate; cilia appendiculate. Stem 
