Occurrence Remarks:
Spore clusters scattered or subconfluent, hypogenous, surrounded by the ruptured epidermis, from one-half to one line in diameter; spores brown, subglobose, roughened with slight indentations, 1-1200 in 1-100 in. in diameter. The spore clusters are sometimes sparlingly, sometimes profusely scattered over the under surface of the leaf, or over a part of it. The spores are sometimes a little longer than broad, sometimes subpyriform, and occasionally furnished with a slight pedicel.