St. John, Harold.

• A chronicle and flora of Niihau
• An Analysis of the Gospel of Mark
• Nomenclature of plants
• Sable Island, with a catalogue of its vascular plants
• The Collected Writings of Harold St. John Volume 1 (Volume 1)
• A botanical exploration of the north shore of the gulf of St. Lawrence
• Additions to the flora of Niihau
• An annotated catalogue of the vascular plants of Benton County, Washington
• Flora of southeastern Washington and of adjacent Idaho
• Hawaiian Panicum, Metrosideros, Sanicula, Lobelia, and Rollandia
• Hawaiian plant studies
• Identification of Hawaiian plants