Pressing no.

ISS-05

Nyctinasty & Turgor Motors: The Circadian Mechanics of Marantaceae

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Florivern press

Recto

Florivern press

Recto

ISS-05

Verso

ISS-05

Verso

Plate I

Abaxial pulvinus articulation at the petiole-lamina junction of Goeppertia orbifolia.

Det.

Dr. Clara Lindqvist

Plant Morphologist & Herbarium Curator

Pressed

Reading

1 min read

Inside the potassium-ion osmotic pumps that raise and lower prayer plant foliage in synchronization with the solar cycle.

Hydraulic Articulation Without Nerves

Without muscle fibers, Goeppertia orbifolia executes daily 80-degree foliar movements by shuttling potassium and chloride ions across flexor and extensor cell membranes in the pulvinus, drawing water osmotically to hinge the leaf blade upward at dusk.

From the workshop

Materials named in this pressing

Only the specimens, vessels and tools the author refers to are listed here.

THE HERBARIUM LETTER — FOUR A YEAR

What to repot, what to read, and what has just been accessioned.

Seasonal, unhurried, and easy to leave.

COLOPHON

Set in Inter and Newsreader, with IBM Plex Mono for specimen records. Botanical plates courtesy of Unsplash contributors.

ON THE RECORD

Pet-safety notes in the Atlas cite the ASPCA classification recorded for each species. Where no classification has been verified, the record says so.

Florivern

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INDEX OF THE COLLECTION · PLATES I–V

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