Opuntia

Correspondence: Watson (Sereno) and Engelmann (George)

Sereno Watson

Correspondence: Geyer (Karl) and Engelmann (George)

Karl Andreas Geyer

Correspondence: Short (Charles) and Engelmann (George)

Charles Wilkins Short

Correspondence: Wright (Charles) and Engelmann (George)

Charles Wright

Correspondence: Leggett (William) and Engelmann (George)

William Henry Leggett

On Opuntia santa-rita, a species of cactus of ornamental value

by J. N. Rose.

Correspondence: Salm-Reifferscheidt (Joseph) and Engelmann (George)

Salm-Reifferscheidt, Joseph Graf zu

Correspondence: Smith (Erwin) and Engelmann (George)

Erwin F. Smith

Correspondence: Greene (Edward) and Engelmann (George)

Edward Lee Greene

Correspondence: Hall (Elihu) and Engelmann (George)

Elihu Hall