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This chapter in Saliceae continues with short discussions of systematics and nomenclature, subjects that remain unsettled in this family. Then, it introduces in general terms each genus, followed by descriptions of the species in each section of the genus- Populus first, then Salix. The species descriptions are not intended to be rigorously botanical; that is, they focus on vegetative characteristics and cannot be used for reliable species identification in the field or in herbaria. For that purpose, a local taxonomic monograph or manual with keys, is recommended. Rather, the chapter approaches each taxon in its geographic and ecological context, describes certain morphological features, depicts intraspecific variation and discusses uses and commercial importance. Due to the large number of Salix taxa, however, the chapter describes only a 32-species subset of tree and shrub willows that currently are important in forestry, horticulture and environmental applications.

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This paper examines one aspect of the curricular change process undertaken by the Foundation Coalition (FC); specifically, how understanding about curricular change held by the FC leaders evolved as they moved through the process of establishing a new curriculum at their institutions. The initial change model was similar to that used for product development and emphasized the role of a pilot program. However, as the curriculum moved beyond the pilot stage to adoption and full‐scale implementation, and then into the final stage where sustaining the new curriculum was the focus, the change model became more complex. Those complexities reflect a parallel evolution in their understanding of what constitutes a curriculum, from their initial conceptualization of it as a product to be carefully designed towards an understanding of it as a dynamic entity whose growth must be sustained.