Abstract
The identity of the original material of <em>Juncus kochii</em> F. W. Schultz (<em>Juncaceae</em>) is discussed. The taxon at present is best regarded as <em>Juncus bulbosus</em> L. subsp. <em>kochii</em> (F. W. Schultz) Reichg. The relevant literature (protologue and references therein) was searched and details of all original elements were compiled. Nomenclatural and taxonomic remarks are given. <em>Juncus welwitschii</em> Hochst. ex Steud. is here excluded as a synonym of <em>Juncus bulbosus</em> subsp. <em>kochii</em>.
Highlights
The paper forms a part of the Juncus bulbosus Synonyms Typification Project (e.g., Proæków 2002, 2006a-c, 2007, 2008a, b), aimed at clarifying the complicated nomenclature within this extremely variable taxon
Koch were lectotypified recently as homotypic (Proæków 2006a). At present they are best regarded as Juncus bulbosus L. subsp. kochii
The discussion on the original Schultzs material of J. kochii is introduced here because: (1) there were many controversies connected with the material earlier, and (2) these significant data had been not included within my recent papers (Proæków 2006a,b)
Summary
The paper forms a part of the Juncus bulbosus Synonyms Typification Project (e.g., Proæków 2002, 2006a-c, 2007, 2008a, b), aimed at clarifying the complicated nomenclature (synonymy) within this extremely variable taxon (because of the high morphological diversity of the bulbous rush, there exist about 60 synonyms). Koch were lectotypified recently as homotypic (Proæków 2006a) At present they are best regarded as Juncus bulbosus L. subsp. Don but Koch (1837) clearly cited Don without the intention of publishing a new name (Kirschner 2002). In this situation there was no evidence for the existence of the name J. nigritellus W. Don. Schultz (1855) did not mention in the J. kochii protologue Kochs validly published illegitimate junior homonym J. supinus var. The discussion on the original Schultzs material of J. kochii is introduced here because: (1) there were many controversies connected with the material earlier (i.e. which specimens are or are not the types), and (2) these significant data had been not included within my recent papers (Proæków 2006a,b). (b) an einem sumpfigen Waldabhange zwischen dem Stüderhofe und dem Dorfe Mölschbach, 2 Stunden
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