It has long been recognized that interspecific hybridization is common in plants, enhancing
processes of diversification and speciation. With the widespread utilization of molecular …

Page 1 IMPATIENS OF AFRICA C.GREY-WILSON AA BALKEMA/ROTTERDAM Page 2 Page 3
Page 4 IMPATIENS OF AFRICA This book contains an authoritative account of the one hundred …

This book is arranged in two sections: the first five chapters cover the genetic mechanisms
associated with plant evolution (chromosome structure and genetic variability, assortment of …

The pattern of evolutionary phylogeny has been highly reticulate mainly on account of
hybridization (crossing between individuals belonging to populations which have different …

Whittemore, AT: Species concepts: a reply to Ernst Mayr.–Taxon 42: 573–583. 1993.–ISSN
0040‐0262. Ernst Mayr has recently analysed the flora of Concord, Massachusetts, and …

Recent field work in East Africa has revealed the occurrence of 6 natural hybrids; 3 further
hybrids are indicated from herbarium material. Species suspected of hybrid origin are also …

The behaviour of honeybees foraging in an artificial flower patch was studied under a variety
of experimental conditions. Honeybees associated food with a flower colour and remained …

Pollen stainability is often equated with pollen viability or fertility and is used by botanists to
evaluate degree of hybridity among individuals of a plant population. Under certain …

The tepary bean (Phaseolus acutifolius A. Gray) is a desirable genetic resource for
incorporation of improved disease, pest, and stress resistance into common bean (P …

This paper deals with the use of cladistic methods and cladograms in phylogeny
reconstruction in plant groups containing numerous taxa. How accurate are the cladograms …