Template:Holmgren, Holmgren & Barnett, 1990
- Holmgren, P.K., Holmgren, N.H., Barnett, L.C.. 1990. Index Herbariorum: The herbaria of the world. Volumen 120 de Regnum vegetabile. Ed. International Association for Plant Taxonomy by New York Botanical Gardens. 693 pp. ISBN 0893273589