| Name | Xylosma congestum var. kwangtungensis F. P. Metcalf |
| Authorship | F. P. Metcalf |
| Rank | Variety |
| NomenclaturalStatus | NomLeg |
| Placed in | Xylosma congestum (Loureiro) Merrill |
| Citation | 1931 J. Arnold Arbor. 12: 272 |
| Holdings | 7 Specimens held in the Harvard University Herbaria identified as Xylosma congestum var. kwangtungensis F. P. Metcalf |
| Identification made in | [no date] (7) |
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