Complex sentence: In a 2005 journal article, Lowrie elevated the subspecies to the species level as "Drosera monticola" but did not properly cite the basionym of the proposed species, making the new scientific name invalid according to Article 33.4 of the International Code of Botanical Nomenclature.
Split into simpler sentences: In a 2005 journal article, Lowrie elevated the subspecies to the species level as "Drosera monticola". However, he did not include a reference to or a full citation of the basionym of the proposed species, making the new scientific name invalid according to Article 33.4 of the International Code of Botanical Nomenclature.