1775 J. Jenkinson tr. Linnæus'Brit. Pl.Gloss. ,Rotundo-ovate, oval, but rather roundish. Rotundo-tetragonal, having four angles rather roundish. 
1847 W. E. Steele FieldBot. 57Leafl. rotundo-ovate, abruptly cuspidate. 
| 词汇 | rotundo- | 
| 词根词缀 | OED 
 
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