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Proposal to amend the International Code of Botanical Nomenclature: (93) The problem of non-binary species-names in works published after 1 May 1753, with a proposal to amend ICBN. / Friis, Ib; Jeffrey, Charles.
Research output: Contribution to journal › Journal article › Research › peer-review
Proposal to amend the International Code of Botanical Nomenclature: Proposal to replace Art. 42.2 with new Art. 42.2 and Art. 42.3. / Friis, Ib.
Rafinesque's Valentiana volubilis, and the early botanical collections from Ethiopia. / Friis, Ib.
The botanical identity of Mimusops in ancient Egyptian tombs. / Friis, Ib; Hepper, F. Nigel; Gasson, Peter.
The forest vegetation of Ethiopia. / Friis, Ib.
The genus Urera Gaud. (Urticaceae) in eastern tropical Africa. / Friis, Ib.
The typification and identity of three species of Parietaria L. (Urticaceae), ostensibly described from South Africa. / Friis, Ib.
Two new taxa and a new combination in Urticaceae for the Flora Zambesiaca. / Friis, Ib.
Variation in Macaranga capensis (Euphorbiaceae). / Friis, Ib; Gilbert, Michael G.
Zonation of Forest Vegetation on the South Slope of Bale Mountains, South Ethiopia. / Friis, Ib.
Research output: Contribution to journal › Journal article › Research