= 177 
| 86. Aongstroemia Bruch et Schimper. : 
LAo.longipes Sommerfelt. —  Weisia Somf; Aongstroemia 
. Leaves ovate-oblong entire not recurved, very small, appres- 
sed when dry: upper acuminate sheathing; costa not percurrent. 
Capsule ovoid smooth erect; lid rostellate; teeth red below, 
. yellow above, sometimes not cleft; pedicel about 1 c. m., stem 
shorter. Tufts loose. Male flowers discoid. Dioecious. — 
Earth princ. on old roads in alps r. Eur. Norway! Sweden 
below alps: J. Persson. Amer. Can.: Macoun, 
- 87. Trematodon Michaux. 
I. Eu-Trematodon. Capsule subcylindric; neck long abruptly 
narrowed; teeth long with prominent basal tube; pedicel long. 
Il. Pseudo-Bruchia. Capsule rourd-oval when ripe; neck 
short gradually narrowed; teeth short broad without prominent 
tube; pedicel short. 
I. . Eu-Trematodon. ; 
iÅ. Capsule not much shorter than neck. Leaves entire; 
. Costa long-excurrent. 
LT.ambiguus Hedwig. — Dicranum H.; Trematodon Horn- 
 $ehüch. 
— Leaves from ovate or ovate-oblong not truncate base abruptly 
. harrowed to a subulate in upper part by costa filled acumen. 
Perichetial leaves gradually acuminate; costa more or less ex- 
. Current often denticulate at apex. Peristomial teeth red us. 
left. -— Wet sand or peat-bogs princ. in northern distr. Eur. 
Sweden not r.l; Miss O. Cron. Norway: W. Baur. Germany: 
. Huebner, Amer. r.. Can.: Macoun; Waghorne. 
. 2Tacicularis Kindb. revue bryol. 1896. 
Leaves broadly suboval truncate above, pointed by costa; 
 Perichetia] nearly similar but larger and longer. Peristomial 
_ teeth orange split in middle; basal tube red. — Bogs r. Amer. 
. Can. Brit. Col.: Macoun. aio uo 
~ Capsule ‘with twice longer neck. Leaves often denticu 
. lite; costa not or scarcely excurrent. 
. 3Tlongicollis Michaux. ; ee 
.. Leaves narrow gradually subulate; perichetial nearly similar. 
. Peristomial teeth pale red often entire. — Moist clay or sandy 
oil. Eur. r. Italy: Gendano, com. Husnot (a var. with entire 
Jéàves) Amer. not r. in southern distr. U. S.: Sullivant, com. 
. €. Mueller. 
