concept

A plant related to birthwort, (Aristolochia longa L.): flowering stem with separate rhizome and sections of fruit. Coloured etching by M. Bouchard, 1774.

Bugloss (Echium lycopsis L.): entire flowering plant. Coloured engraving after F. von Scheidl, 1770.

Comfrey (Symphytum tuberosum L.): entire flowering plant with separate floral sections. Coloured etching by M. Bouchard, 1774.

Tobacco (Nicotiana sp.): flowering stem with separate leaf. Coloured etching by M. Bouchard, 1772.

Comfrey (Symphytum officinale L.): flowering stem with separate leaf and rootstock. Coloured etching by M. Bouchard, 1774.

A plant (Erysimum murale) related to the wallflower: flowering stem with separate fruit and seed. Coloured engraving after F. von Scheidl, 1776.

A plant (Cheiranthus sp.): flowering stem with separate opened fruit and seeds. Coloured etching by M. Bouchard, 177-.

A species of the genus Arum: fruiting spadix with separate leaves and single sectioned fruit. Coloured etching by M. Bouchard, 1774.

Smoking tobacco (Nicotiana tabacum L.): flowering and fruiting stem. Coloured etching by M. Bouchard, 1772.

A species of the genus Arum: spadix, leaf and tuber. Coloured etching by M. Bouchard, 1774.

Black nightshade (Solanum nigrum L.): flowering and fruiting stem. Coloured etching by M. Bouchard, 1774.

Proceedings of the Association of Economic Biologists ordinary meeting held at 2.30 p.m. on May 13th, 1927, in the Imperial College of Science ... : discussion on plant alkaloids.

Chemistry of the opium alkaloids / by Lyndon F. Small, assisted by Robert E. Lutz ; prepared by direction of the surgeon general.

On the animal alkaloids : the ptomaïnes, leucomaïnes, and extractives in their pathological relations / by Sir William Aitken.

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Alkaloids

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Black nightshade (Solanum nigrum L.): flowering and fruiting stem. Coloured etching by M. Bouchard, 1774.

Proceedings of the Association of Economic Biologists ordinary meeting held at 2.30 p.m. on May 13th, 1927, in the Imperial College of Science ... : discussion on plant alkaloids.

Chemistry of the opium alkaloids / by Lyndon F. Small, assisted by Robert E. Lutz ; prepared by direction of the surgeon general.

Comfrey (Symphytum officinale L.): flowering stem with separate leaf and rootstock. Coloured etching by M. Bouchard, 1774.

On the animal alkaloids : the ptomaïnes, leucomaïnes, and extractives in their pathological relations / by Sir William Aitken.