| Summary: | A contribution to the nomenclature of the genus <i>Sagina</i> is presented. The following 10 taxa are recognized as being part of the Italian flora: <i>S. alexandrae</i>, <i>S. apetala</i>, <i>S. glabra</i>, <i>S. maritima</i>, <i>S. micropetala</i>, <i>S. nodosa</i>, <i>S. pilifera</i>, <i>S. procumbens</i>, <i>S. revelierei</i>, and <i>S. saginoides</i> subsp. <i>saginoides</i>. The names <i>S. apetala</i> var. <i>decumbens</i> (=<i>S. apetala</i> subsp. <i>apetala</i>), <i>S. bryoides</i> (=<i>S. procumbens</i>), <i>S. patula</i> (=<i>S. apetala</i> subsp. <i>apetala</i>), <i>S. revelierei</i>, <i>Spergula glabra</i> (=<i>S. glabra</i>), <i>Spergula pilifera</i> (=<i>S. pilifera</i>), and <i>Spergella subulata</i> var. <i>macrocarpa</i> (=<i>S. saginoides</i> subsp. <i>saginoides</i>) are here typified. Specimens deposited at B-W, C, E, and LY, and illustrations by Reichenbach were considered for the typifications. Specifically, two Reichenbach’s illustrations are chosen for <i>S. bryoides</i> and <i>S. saginoides</i> var. <i>macrocarpa</i>. A specimen at B-W is designated as the lectotype of <i>S. glabra</i>. Two specimens at C and G are designated as the lectotypes of <i>S. apetala</i> var. <i>decumbens</i> and <i>S. revelierei</i>, respectively. A specimen at LY is designated for <i>S. patula</i>. As we did not find original material, a neotype at G is designated for <i>S. pilifera</i>.
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