摘要：

A study of changes in leaf number and winter bud structure in Alnus hirsuta, A. japonica, A. glutinosa, A. pendula, A. maximowiczii, Betula platyphylla var. japonica [B. mandshurica], B. davurica, B. maximowicziana, B. ermanii, Corylus sieboldiana, Ostrya japonica and Carpinus cordata, aged 6-30 yr in 1977-80 in Japan. The period of leaf emergence was long in Alnus and Betula, intermediate in C...

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