Taxonomic notes on the genus Deutzia (Hydrangeaceae) from Central China
Based on examination of syntype specimens deposited at P, the lectotype for the name Deutzia setchuenensis Franch. is designated here. By consulting literature and specimen records, the type locality of D. setchuenensis var. longidentata Rehder, ‘Chin-Ting shan’ in the protologue is likely a misspelling of ‘Chiuting shan’ which is now called Jiuding shan located in southern Mao county, Sichuan province. In addition, a new variety, Deutzia setchuenensis var. macrocarpa Q.L.Gan, Z.Y.Li & S.Z.Xu from western Hubei, Central China, is described and illustrated. It differs from other varieties of D. setchuenensis Franch. by the orange anthers, broader outer filaments, obtuse inner filaments, and larger fruits.
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