Cooke’s botanical scale

Cooke called little duckweed (*Lemna minor*) the smallest flowering plant in his comparison. Shown enlarged for legibility. 🌱

The middle point: St John’s wort, about 20 inches high in Cooke’s length comparison. 🌼

At the largest end, Cooke cited Mr D. Boyle’s 420-foot measurement of a fallen *Eucalyptus amygdalina*. This is his report, not a modern verified maximum. 🌳