Hi Everyone,
Gayle Volk at the USDA-ARS National Center for Genetic Resources Preservation in Ft. Collins, CO has put together some resources that we might find helpful:
NPGSRosaceae.doc summarizing recent changes in the USDA-ARS National Plant Germplasm System "NPGS" (genotyping Rosaceae, and improvements to the Genetic Resources Information Network "GRIN")
Rosaceae inventory.xls A summary of the Malus, Pyrus, Fragaria, Prunus, Rubus, and Rosa accessions held in the germplasm system
Descriptors Lists for Rosaceae.doc A large file with links in it, listing all the morphological descriptors for which there is information in GRIN.
Feel free to contact Gayle directly if you have any questions, comments, or suggestions; or if you'll be in Michigan this week, I can try and clarify things.
Cheers,
anja