AcrostichumActinostachysAdenophorusAdiantaceaeAdiantumAdiantum aleuticumAdiantum bellumAdiantum capillus-venerisAdiantum diaphanumAdiantum gertrudisAdiantum jordaniiAdiantum pedatumAdiantum peruvianumAdiantum trapeziformeAglaomorphaAglaomorpha meyenianaAleuritopterisAleuritopteris squamosaAnemia (plant)AnemiaceaeAngiopterisAnogrammaAnogramma ascensionisAnogramma leptophyllaAntrophyumAntrophyum austroqueenslandicumArachniodes tsiangianaAraiostegiaArgyrochosmaArgyrochosma jonesiiAspidotisAspidotis californicaAspidotis carlotta-halliaeAspidotis densaAspleniaceaeAspleniumAsplenium aequibasisAsplenium antiquumAsplenium ascensionisAsplenium australasicum