rosaceo-amygdalaceae

Updated: August 16, 2026

Sometimes it is morphine or the narcotic principle, that characterises the vegetable milk, as in some papaverous plants; sometimes it is caoutchouc, as in the hevea and the castilloa; sometimes albumen and caseum, as in the cow-tree. The hydrocyanic acid is peculiar to the group of rosaceo-amygdalaceae.

Alexander von Humboldt - Personal Narrative of Travels to the Equinoctial Regions of America, During the Year 1799-1804 — Volume 2