Distichium (24). Caps. as in last; teeth 32 (16 Wilson) not confluent at base, linear-lanceolate, entire, perforate or cleft, with a medial line; leaves distichous, setaceous from a sheathing base. 58.
Tortula (27). Caps. mostly erect ovate-oblong, smooth, teeth 32 very long filiform twisted, articulate papillose, outer cellules yellow, inner red, often united into a membrane at base; leaves not distichous. 63.
Cinclidotus (28). Caps. immersed ovate or oval, smooth, teeth 32 perfect or rudimentary, adhering at top to columella, contorted, anastomising at base. 74.
- * * * * Teeth 32 or 64 equidistant, short, obtuse,
connected at apex by a tympanum, formed of dilated apex of columella; nerve of leaf covered with vertical lamellæ.
[dagger] Caps. not angular.
Atrichum (42). Caps. cylindrical, erect or cernuous, calyptra narrow, almost naked, spinulose at apex only; teeth 32 ligulate rigid, united at base by a narrow membrane, leaves not sheathing, lamellæ few, nerve narrow. Columella round. 100.
Oligotrichum (43). Caps. sub-cylindrical, erect, gibbous, peristome as above; calyptra slightly setose at apex; leaves sheathing at base, more lamellated, nerve wider; columella winged. 101.
Pogonatum (44) Caps. ovate or urceolate, regular,
