World checklist of Geranium L. (Geraniaceae)
Keywords:Geranium, Geraniaceae, geographical distribution, checklist, sectional classification, nomenclature
A checklist of the genus Geranium L. (Geraniaceae) is presented. Four hundred and twenty three species are recognized in 3 subgenera and 18 sections. Our classification differs from Yeo's only in some aspects of subg. Erodioidea and Geranium. Section Brasiliensia is included in subg. Erodioidea, and sect. Neurophyllodes, Paramensia and Azorelloida in subg. Geranium. Section Azorelloida is proposed as an avowed substitute (nom. nov.) for sect. Petraea R. Knuth, nom. illeg. G. collae is proposed as avowed substitute (nom. nov.) for G. intermedium Colla, nom. illeg. An identification key to subgenera and sections is presented. A thorough revision of available names in the genus, and a review of their nomenclatural status were carried out. Correct name, place of publication and distribution are given for each species. Geographical distributions are given at region and botanical country leveis following the International Working Group on Taxonomic Databases (TDWG) standard. When possible, selected references with relevant information are also included.
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