Fragilariforma cassieae
Fragilariforma rakiuriensis
Fragilariforma horstii
Fragilariforma acidobiontica
Fragilariforma amazonica
Fragilariforma australoides
Fragilariforma bastowiana
Fragilariforma bicapitata
Fragilariforma brasiliensis
Fragilariforma constricta
(tree size 2)
Fragilariforma costata
Fragilariforma floridana
Fragilariforma hamiltonii
Fragilariforma javanica
Fragilariforma karelica
Fragilariforma lata
(tree size 1)
Fragilariforma marylandica
Fragilariforma nitzschioides
Fragilariforma polygonata
Fragilariforma spinulosa
Fragilariforma stevensonii
Fragilariforma strangulata
Fragilariforma telum
Fragilariforma undata
Fragilariforma virescens
(tree size 3)
Fragilariforma williamsii