Le rouge sur les toiles de Perse et de Madras ne vient pas d'un rubia (garance) mais d'une plante voisine du rubia qui s'appelle oldenlandia umbellata décrite par Roxburgh plantae cero mondelicaem.

M. Co[...]a

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Acides	Odeur	Volatilité	Calorique	Eau	Alcool Huiles	Acides […]	Bases alcalines	[…]		Caractères distinctifs