From "Flora Rossica" by Peter Simon Pallas, Vol. II, 1788, tab 84
Courtesy of www.plantillustrations.org and Bibilothèque de l'Université de Strasbourg
From "The Botanist's Repository", Vol. 1, 1797, tab 64: "1. The Empalement, Chives, and Pointals. 2. A Thread and its Tip (magnified). 3. The Seed-vessels. 4. A Seed. "
Courtesy of the Biodiversity Heritage Library