Nelson, Thomas W.
| 1985 | "A new Madia of sect. Anisocarpus (Compositae: Heliantheae) from Trinity County, California" in Brittonia |
| 1983 | "Two new species of leguminosae from Serpentine of Humboldt County, California" in Brittonia |
| 1981 | "A new species of Minuartia (Caryophyllaceae) from Northwest California" in Brittonia |
| 1981 | "A new species of Ivesia (Rosaceae) from Lassen County, California" in Brittonia |