Complex sentence: Most Psathyrellaceae basidiospores have a germ pore, and the pigment in the spore walls bleaches in concentrated sulfuric acid, in contrast with another phylogenetically unrelated dark-spored genus, "Panaeolus".
Split into simpler sentences: Most Psathyrellaceae basidiospores have a germ pore, and the pigment in the spore walls bleaches in concentrated sulfuric acid. This contrasts with another phylogenetically unrelated dark-spored genus, "Panaeolus".