publication venue for
- Type localities of vascular plants first described from Ohio: Supplement. 22:765-767. 2006
- A new species of Sabatia (Gentianaceae) from Saline County, Arkansas. 21:1249-1262. 2005
- Nomenclature of the Virginia-bluebell, Mertensia virginica (Boraginaceae). 21:771-775. 2004
- Notes on the distribution and nomenclature of North American Gentianopsis (Gentianaceae). 21:524-530. 2004
- History and eponymy of the genus name Amsonia (Apocynaceae). 21:379-387. 2004
- Two new combinations in Bolivian Gentianella (Gentianaceae). 20:1485-1490. 2003
- Type localities of vascular plants first described from Ohio. 20:1677-1692. 2003
- Nomenclature of the heart-leaved hedge-nettle, Stachys cordata (Lamiaceae). 20:583-584. 2002