Outbreeding depression in the fernAsplenium ruta-murariaL.: Evidence from enzyme electrophoresis, meiotic irregularities and reduced spore viability

Biological Journal of the Linnean Society - Tập 59 - Trang 281-295 - 1996
J.J. SCHNELLER1
1Institut für Systematische Botanik, Universität Zürich, Zollikerstrasse 107, CH-8008 Zürich, Switzerland