Solitary in the axils of small 4-ranked leaves, or in the bases of linear radical leaves. [Selaginellaceæ], [697]
Enclosed in peduncled sporocarps; leaves 4-foliolate. [Marsiliaceæ], [700]
Sporocarps sessile beneath the stem; small, floating, pinnately branched, with minute imbricate leaves. [Salviniaceæ], [701]
Subclass II. BRYOPHYTES: with cellular tissue only. [Capsules not operculate, containing spores and usually elaters, in the following Orders.]
Capsule 4-valved, pedicellate; plants leafy-stemmed, rarely thallose. [Jungermanniaceæ], [702]
Capsule 2-valved or valveless; plants thallose.
Thallus without epidermis; capsule with a columella, short-pedicelled or sessile on the thallus. [Anthocerotaceæ], [726]
Capsules borne beneath a pedunculate receptacle. [Marchantiaceæ], [727]
Capsules immersed in the thallus or sessile upon it, indehiscent. [Ricciaceæ], [730]