When mature, a perithecium contains several hundred asci that are ejected by turgor pressure. |
Features of the spores and the perithecium in which they occur suggest that this may be a fossil species of Savoryella. |
All these steps take place in a specialized fruiting structure, the perithecium. |
A spore leaving the perithecium travels nearly straight up at first. |
Since the perithecium grows out into the medium from the hymenium after nuclear pairing, this is ascohymenial development. |
Inside the perithecium, the developing asci are immersed in maternal tissue. |