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Catalogus Plantarum Venenosarum — Carpathian Expedition MDCCCLXVII
Herbarium Venenosum

Plate II — The Expedition

Itinerarium per Montes Carpathicos

Hermannstadt Kronstadt Borgo Pass Terminus N

Departed Hermannstadt at dawn under leaden skies. The apothecary warned against venturing into the high passes after the equinox -- said the locals know of plants there that “open the door between this world and the next.” I dismissed this as peasant superstition. My commission from the Royal Society demands thoroughness.

Reached Kronstadt. The monastery garden yielded three specimens of Aconitum napellus in full bloom. The monks cultivate it knowingly -- they call it “the queen’s herb” and use a tincture of the root for rheumatic complaints. I pressed two specimens and noted the characteristic helmet-shaped sepals.

The Borgo Pass. Found what I believe to be Atropa belladonna growing wild in disturbing abundance along the treeline. Black berries glistening like eyes in the undergrowth. The guide refused to proceed beyond the stone marker. I continued alone.

The final campsite. Specimens collected beyond all expectation. My hands tremble -- whether from cold or from the alkaloids seeping through my skin, I cannot say. The belladonna watches me. I am certain of it now.

Plate III — Specimen Gallery

Herbarium Selectum Venenosarum

Plate IV — The Marginalia

Annotationes et Observationes

cf. Dioscorides, De Materia Medica IV.73 — “the root, taken in drink, has power to kill”
Alkaloid concentration peaks at autumn equinox — 0.3% to 1.5% by dry weight
WARNING: Do not handle A. belladonna berries without gloves. Three berries sufficient for a child.

The classification of toxic flora requires a taxonomy that moves beyond Linnaeus. I have begun to develop a system based not on reproductive morphology but on the nature of the poison itself — its speed, its symptoms, its reversibility.

Aconitum kills through paralysis of the respiratory center. The victim remains conscious as breathing fails. Death in two to six hours. Classification: Gradus III — swift, irreversible, agonizing.

Atropa belladonna attacks the nervous system entire. Hallucinations precede convulsions. The pupils dilate until the eyes appear entirely black — hence the old name, “beautiful lady,” for the cosmetic use of the tincture. Classification: Gradus V — the highest grade, for it kills not merely the body but the mind first.

Conium maculatum — the poison of Socrates. An ascending paralysis: first the feet, then the legs, then the diaphragm. The philosopher continued to speak until his lungs could no longer inflate. Classification: Gradus IV — methodical, inevitable.

I confess the work has changed me. I no longer sleep easily. The specimens seem to watch from their pressing boards. Last night I dreamed of a garden where every flower was lethal and every path led deeper in.

C₁₇H₂₃NO₃ — atropine
Lethal dose: 10mg (adult)
The Borgo specimens show unusual potency. Soil composition? Altitude? Or something else entirely?
N.B. — The guide’s words: “These mountains do not forgive the curious.”

Plate V — The Final Entry

Ultima Annotatio

The hand that writes this trembles. I have tasted the belladonna — a single berry, no more, for the sake of science and to understand what my specimens have always known about me.

The pupils dilate. The room expands. The pressed flowers on my desk have begun to grow again, pushing through the paper, roots crawling across the blotting pad.

I understand now why the old herbalists warned against naming these plants aloud. To name them is to invite them. To study them is to become their student. And their final lesson is always the same.

The garden grows.

Atropa belladonna — Gradus V — Terminalis