The typifications of Juncus kochii F.W. Schultz and Juncus supinus Moench var. nigritellus W.D.J. Koch non (D. Don) F.W. Schultz are discussed. A specimen from the Koch Herbarium (at L) is designated lectotype for both names. The taxon to which they apply is at present best regarded as Juncus bulbosus L. subsp. kochii (F. W. Schultz) Reichg.