Nomenclature: wfo-4000046856
![Édouard Spach (1801-1879) Édouard Spach (1801-1879)](http://commons.wikimedia.org/wiki/Special:FilePath/Acta%20Horti%20berg.%20-%201905%20-%20tafl.%20142%20-%20Edouard%20Spach.png)
![Robert Brown (1773-1858) Robert Brown (1773-1858)](http://commons.wikimedia.org/wiki/Special:FilePath/Robert%20brown%20botaniker.jpg)
Isomerium Histoire Naturelle des V?g?taux. Phan?rogames 10 1841
Nomenclatural References
- person : Édouard Spach (1801-1879) Based on occurrence of standard abbreviation 'Spach' in the authors string.
- person : Robert Brown (1773-1858) Based on occurrence of standard abbreviation 'R.Br.' in the authors string.
- database : IPNI record: 118224-3