发布日期：2017-4-6 13:19:41

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My adviser proposed that I should start working on the dogwoods group because there was a great controversy in the classification of the group, a great diversity in inflorescences, and an interesting discontinuous geographical distribution, Now, more than 30 years later, I still find there are an immense number of questions to answer – more than I will be able to answer in my career.