Crozier (mycology) Crozier (mycology) A crozier is an anatomical feature of many fungi in the phylum Ascomycota that form at the base of asci and look like hook-topped shepherd’s staffs or stylized religious crosiers. During the ascus initial formation the crozier helps to maintain a dikaryotic state in the ascus initial and its side branch that will continue the spreading growth of the ascogenous hyphae in Ascomycota fruitbodies. The tips of developing asci on these ascogenous hyphae curl over. One haploid nucleus migrates into the curved tip while the other compatible haploid nucleus remains in the penultimate space below the hook. The
Association for the Study of Ethnicity and Nationalism Association for the Study of Ethnicity and Nationalism The Association for the Study of Ethnicity and Nationalism (ASEN) is an international, interdisciplinary association for academics, researchers, students, journalists and others directly concerned with advancing the study of ethnicity and nationalism. It was founded by research students and academics in 1990 at the London School of Economics, where the headquarters of the Association are based. The objectives of the Association are to establish an international and interdisciplinary network of scholars interested in ethnicity and nationalism; stimulate debate on ethnicity and nationalism through the organisation of seminars, workshops, lectures and conferences; disseminate