Monilophyta

Sporangia scattered over the lower surface of the lamina, or 2-3(-4) fused into synangia in the axils of 2-lobed scale-like or leaf-like appendages, or rarely in terminal strobili, then the sporangia hanging from a peltate structure. Monilophyta
consider the other alternative
Plants growing in soil, mud or epiphytic
consider the other alternative
Plants not aquatic
consider the other alternative
Stems not articulate with several-veined leaves or, if the leaves are 1-veined, then not whorled
consider the other alternative
Sporangia 2–3 (rarely 4), fused into synangia (Fig. 12), 2–6 mm in diam. or length, occurring in the axils of 2-lobed appendages. Sterile lateral appendages either minute and scale-like or leaf-like and 1–4 cm long. Stems simple or dichotomously branched. Rupestral or epiphytic plants Psilotaceae
choose this alternativereject this alternative
Sterile lateral appendages 0.5–2 mm long; the apex non-mucronate. Synangia composed of 3 (very rarely 2 or 4) sporangia (Fig. 12) Psilotum
choose this alternativereject this alternative
Sterile lateral appendages 6–31 mm long; the apex mucronate. Synangia composed of 2 sporangia Tmesipteris