… consider the nature of the flowers of the immediate … heterostylous descendants and we
discuss the evolutionary pathways by which the suites of characters that contribute to heterostyly …

… the evolution of heterostyly differ in t(le emphasis given to different selective forces and in the
sequence in which the … two questions concerned with the evolution of heterostyly: how did …

… The present volume is an attempt to remedy this deficiency by providing an up-to-date …
The diversity of approaches used to study heterostyly are reflected in the topics covered in this …

… various intensity and kinds of physiological incompatibility, and the breeding systems of … the
evolutionary development of heterostyly. It is only when all the different aspects of heterostyly …

… crosses between organs at the same level. In this chapter we … the diversity of organization
in heterostylous flowers, consider the developmental bases for this diversity, and examine the …

… " heterostyly. Since some morphologically typical heterostylous species are self-compatible,
I will use the term … There are a few cases, however, where species possess the diallelic self-…

… evolution and adaptive significance (reviewed in Barrett, 1992a). Models … the evolution of
heterostyly differ in the pathways by which the polymorphism is thought to originate and in the …

… the evolution and breakdown of heterostyly… the evolutionary breakdown of heterostyly (Section
V), whereas other atypical features are maintained in functioning and stable heterostylous …

… :" The final conclusion of this paper must be the unsatisfactory one that the only scheme so
far suggested by no means fits all the … The main fascination in heterostyly from Darwin to the …

… and alterations in the floral … of heterostylous systems include the replacement of one type
of outcrossing system by another such as the evolution of dioecism from distyly and the origin of …