Sanguinaria canadensis, xlix, 130.
Sanicula marilandica, xi, 174.
Sarracenia, remarks on the genus and species of, H. B. Croom, xxvi, 316.
— pulchella, xxv, 75.
Saxifraga Careyana, xlii, 32.
Schænus effusus, northern limit of, H. B. Croom, xxvi, 315.
Scutellaria arguta, xlv, 175.
— saxatilis, xlii, 18.
— parvula, xiv, 117.
Selloa nudata, v, 300.