科研之友
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摘要
Two previously unknown willow hybrids, Salix ℅ velchevii (S. amplexicaulis Bory ℅ S. xanthicola K.I. Chr.) and S. ℅ ardana (S. alba L. ℅ S. xanthicola K.I. Chr.), are described from the Bulgarian Rhodope Mts. This is the first report on hybridization in the endemic Balkan species S. xanthicola.
