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"Symphytum officinale; 2. a diagram of its flower; 3. its pistil; 4. the calyx opened, with two of the nuts remaining; 5. a vertical section of a nut." -Lindley, 1853

Comfrey

"Symphytum officinale; 2. a diagram of its flower; 3. its pistil; 4. the calyx opened, with two of the…

"Drupe.--A fruit enclosing a stone or nut." -Newman, 1850

Drupe

"Drupe.--A fruit enclosing a stone or nut." -Newman, 1850

Schizaeaceae: 1, aneimia, sporangium. Osmundaceae: 2, Osmunda, sporangium; a, front view, b, back view. Salviniaceae: 3, salvinia, a, whole plant; b, section of sporocarps showing sporangia. Marsileaceae: 4, marsilea, a, whole plant; b, sporocarp germinating; c, sporocarp emitting gelatinous thread with sori; 5, pilularia, a, cross section of sporocarp; b, sporocarp emitting sporangia.

Schizaeaceae, Osmundaceae, Salviniaceae, and Marrsileaceae

Schizaeaceae: 1, aneimia, sporangium. Osmundaceae: 2, Osmunda, sporangium; a, front view, b, back view.…