Page:Books from the Biodiversity Heritage Library (IA synopsisofbritis00hobk).pdf/13



ACROCARPI.

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

Capsule without a deciduous lid.

a. caps. bursting irregularly.

(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. 26.

(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.

(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.

B. Capsule with a deciduous lid.

I.

a. caps. sessile on a stalked vaginula.

(2). Perennial, aquatic; caps. globular,