S

Systema Naturae, Editio Decima

846, 855, 1359. 1759,

Familles des Plantes

2: 31, 599. 1763 and

Contr. U.S. Natl. Herb.

12: 116. 1908,

Contributions from the United States National Herbarium

46: 443-527, 550. 2003.