Climacium (80). Caps. oblong, erect; lid adhering to the persistent columella; outer teeth linear-lanceolate, confluent at base, trabeculate, with a medial line; inner alternate and longer than outer, lacunose without cilia, the two segments of each process united only at apex; stem dendroid, erect. 142.
Isothecium (79). Caps. oval, sub-erect, symmetrical; lid not adhering to columella; outer teeth 16 barred, with a medial line; inner with intermediate cilia, two or three together; stem dendroid drooping; branches fasciculate or pinnate. 142.
- * Caps. unequal, cernuous.
Hypnum (83). Caps. cernuous, sometimes nearly erect, rarely pendulous, ovate or oblong, more or less curved, and sometimes slightly apophysate; outer teeth 16 equidistant lanceolate acuminate, barred, inner alternating, often perforate, with intermediate cilia, one, two or three together. 145.
c. Inner perist. a reticulated cone.
Dichelyma (90). Peristome like Fontinalis; caps. scarcely exserted; calyptra long twisted; leaves nerved. 185.
Div. II. Calyptra mitriform.
Hookeria (86). Caps. ovate or elliptical, cernuous, lid with a straight beak; perist. as in Leskia; calyptra not fringed at base; leaves complanate, loosely reticulated. 184.
