Varronia bullata

References

1. [1]Manual of the Southeastern Flora. — Small J.K. · University of N. Carolina Press. · 1933 · http://www.biodiversitylibrary.org ↩︎Getting rather dated now, an immense work covering the flora of Southeastern N. America. No pictures, it is not for the casual reader. It can be downloaded from the Internet.
2. [2]IUCN Red List of Threatened Species — http://www.iucnredlist.org/ ↩︎A list of plants under threat and facing possible extinction, usually with brief details of the threats and information on habitat.
3. [3]Flora of Guatemala — Standley P.C. & J. A. Steyermark · 1946 - 1976 · http://www.archive.org/ ↩︎A superb reference, though somewhat dated. Gives lots of plant uses as well as information on plant habit and habitat. The entire flora (13 volumes) can now be downloaded from http://www.archive.org/
4. [4]Traditional uses, phytochemistry and pharmacology of the medicinal species of the genus Cordia (Boraginaceae) — Oza M.J. & Kulkarni Y.A. · 2017 · http://10.1111/jphp.12715 ↩︎
5. [5]Antimicrobial activity of essential oil of Cordia globosa — Melissa M. et al · 2016 · http://10.5897/AJPP2015.4444 · ISBN 1996-0816 ↩︎