Crossability between native Ligustrum japonicum, common at low-mountains in warm-temperate zone and exotic Ligustrum lucidum, going out of the site planted and expands its distribution, is concerned about. We compared the floral phenology and morphology between the species to examine the crossability. Moreover flowering periods of L. japonicum trees were earlier than those of L. lucidum trees. Flowering periods of some L. japonicum trees were overlapped with those of L. lucidum trees. In the floral morphology, there were differences between the species for example in the corolla tube length. Most of them were larger in L. japonicum than those of L. lucidum, while no difference in exposed stamen length. Pistils of some L. japonicum trees were exposed from its corolla tubes, and these of others were buried in them, whereas all the pistils of L. lucidum were exposed from its corolla tubes. These results suggest the crossability between species from pollen of L. japonicum to the other.
雑誌名
三重大学大学院生物資源学研究科紀要
雑誌名(英)
THE BULLETIN OF THE GRADUATE SCHOOL OF BIORESOURCES MIE UNIVERSITY
在来種ネズミモチと外来種トウネズミモチの開花フェノロジーと花形態の種間比較
50C18233
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