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A New Intersectional Hybrid of Cerasus (Rosaceae) Found in Japan

机译:在日本发现的一种新的交尾类蔷薇(蔷薇科)杂交种

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摘要

Anew putative hybrid, Cerasus ^shikamae, is described based on morphological differences. The hybrid was found in Yamagata Prefecture, northern Honshu, Japan, by Setsuo Shikama. The putative parents are Cerasus maximowiczii (Rupr.) Kom. in sect. Phyllomahaleb and C. leveilleana (Koehne) H. Ohba in sect. Serrulatae. This is the first inteisectional hybrid between the species in the sections Phyllomahaleb and Serrulatae. Cerasus xshikamae differs from C. maximowiczii in having relatively large bright green leaves with acuminate apex and single serrations, pedicels and petioles with dense spreading hairs, and relatively large flowers and petals with emarginate apex, while from C. leveilleana it differs by the racemose inflorescences with conspicuous bracts up to 8 x 7 mm, the inconspicuous glands at the base of blades, and the flowers 1.7-2.2 cm across.
机译:基于形态差异描述了一种新的推定杂种Cerasus ^ shikamae。该杂交种是由日本濑户雄鹿冈在日本本州北部的山形县发现的。推定的父母是Cerasus maximowiczii(Rupr。)Kom。在宗派。 Phyllomahaleb和C. leveilleana(Koehne)H. Ohba的分支。 ru科这是Phyllomahaleb和Serrulatae部分中物种之间的第一个节间杂种。 Cerasus xshikamae与C. maximowiczii的不同之处在于具有相对较大的鲜绿色的叶,具尖尖的先端和单锯齿,有梗的花梗和叶柄以及散布有密集的先端的较大的花和花瓣,而与C. leveilleana的区别在于消旋体花序片长到8 x 7毫米,叶片基部不明显的腺体,花宽1.7-2.2厘米。

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