Noun:

தீயேசி,

theaceae's Usage Examples:

Among Jurassic species which should probably be classed as Cyatheaceae, Coniopterss hymenophylloides is recorded from England, France, Russia, Poland, Bornholm, Italy.

The Cyatheaceae constitute another family of leptosporangiate Ferns which had several representatives in Mesozoic floras.

It is by no means easy in dealing with fossil ferns to distinguish between certain Polypodiaceae - such as species of Davallia - and members of the Cyatheaceae.

Typically Marattiaceous sori, consisting of exannulate sporangia united to form synangia, are frequent, and are almost always found on fronds with the character of Pecopteris, large, repeatedly pinnate leaves, resembling those of Cyatheaceae or some species of Nephrodium.

The first includes the Marattiaceae, Osmundaceae, Schizaeaceae, Gleicheniaceae and Matoniaceae; the second the Loxsomaceae, Hymenophyllaceae, Cyatheaceae and the Dennstaedtineae (a group including species placed in the Synopsis Filicum in Dicksonia and Davallia); while the remaining Polypodiaceae constitute the Mixtae.