The development of ascospores in Rhytidhysterium rufuluni (Speg.) Petraj

The ascospore development was investigated in Rhytidhysterium rufulum. The nucleus in the ascus mother cell divides to form 16 nuclei. At this stage the ascus cytoplasm cleaves into eight units, each with two nuclei. Each of these divide again so that ultimately eight 4-celled ascospores are formed in each ascus. Each cell of the ascus having only one nucleus.