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An annotated checklist and lectotypification of Ostryopsis Decne. (Betulaceae), with notes on the numbering system in the collections of P.J.M. Delavay

. Phytotaxa. 282, 3 (Oct. 2016), 235–238. DOI:https://doi.org/10.11646/phytotaxa.282.3.9.