What is a Herbarium?
- Luca Ghini and the first herbarium: http://en.wikipedia.org/wiki/Luca_Ghini
- What is a Herbarium? (Royal Botanic Gardens, Kew): http://apps.kew.org/herbcat/gotoWhatIsHerbarium.do
- What Is An Herbarium? (Botanical Research Institute of Texas): http://www2.brit.org/brit-press/nctexasflora/collecting/
