1	"Leaves fleshy, in a cluster on a subterranean tuberous stem; strobilus on a simple leafless fleshy peduncle"	"Phylloglossum {Phylloglossum drummondii}"
1	"Leaves borne on elongate stems; strobili, if present, borne on simple or compound leafy peduncles"	2
2	"Stems isotomously branched, without elongate indeterminate main stems (but sometimes heteroblastic); roots usually forming a basal tuft; sporophylls and vegetative leaves alike, or the sporophylls, if smaller, persisting, not subpeltate and ephemeral; spores foveolate-fossulate"	Huperzia
2	"Stems anisotomously branched throughout, differentiated into elongate indeterminate rhizomatous or creeping climbing or trailing main stems and usually determinate branchlet systems; sporophylls modified, ephemeral, very dissimilar to vegetative leaves, usually subpeltate and aggregated into compact terminal strobili; spores reticulate, rugose, baculate or scabrate"	3
3	"Strobili erect, sessile or pedunculate, borne on branchlet systems arising in a dorso-lateral position on the main stem or pendulous and pedunculate; spores reticulate, baculate or scabrate"	Lycopodium
3	"Strobili pendulous and sessile or erect and terminating simple (or rarely up to twice forked) branches which arise dorsally on the creeping stem, or erect and seemingly lateral and subsessile on overtopping vegetative shoots; spores rugose"	Lycopodiella