TY - ART TI - George Engelmann : botanical notebook 9 : Echinocereus, Cereus, Eulychnia, Pilocereus — Illustration, [No.] 2109 2 / [No.] 2109 [1] verso PY - 1869 UR - https://www.biodiversitylibrary.org/page/56134352 ID - page-56134352 ER -