), hairy; leaves two to 4 periods pinnately compound, glabrous or hairy; sori mainly marginal or submarginal, discrete or in a very more or less uninterrupted line, the indusium cup-shaped or lateral and elongate, in some cases also Together with the phase margin reflexed; sporangia With all the annulus vertical; https://troyemuag.magicianwiki.com/1559219/ballon_arch_can_be_fun_for_anyone