), hairy; leaves two to four instances pinnately compound, glabrous or hairy; sori typically marginal or submarginal, discrete or in the kind of uninterrupted line, the indusium cup-shaped or lateral and elongate, often also with the section margin reflexed; sporangia While using the annulus vertical; spores largely trilete (tetrahedral-globose); about https://balloon-arch-frame64309.tinyblogging.com/detailed-notes-on-ballon-arch-80460725