Chapter C: P. H

ANALYSIS OF GENERA.

SECT. I. ACROCARPI.

Fr. terminal (or in a few instances cladocarpous).

DIVISION A. Capsule without a deciduous lid.

_a._ caps. bursting irregularly.

ARCHIDIUM (3). Perennial; caps. _globular_, _sessile_; calyptra thin and membranous, irregularly torn in the middle; _spores large_; infl. monoicous; barren fl. gemmiform, two-leaved or naked in axils of perichætial leaves. PAGE 26.

PHASCUM (4). _Annual._ Caps. ovate or roundish, very shortly _pedicillate_; calyptra campanulate; spores _small_, roughish; infl. monoicous; barren fl. gemmiform either at base of plant, or axillary, rarely terminal and discoid. 26.

_b._ caps. bursting regularly.

ANDREÆA (1). Caps. oval erect, opening by four _longitudinal slits_, sessile on a stalked vaginula; calyptra mitriform, thin; spores small, at first clustered together in fours: perennial. 21.

DIVISION B. Capsule with a deciduous lid.