. Fio. 102.—Puccinia malvacearum. Mallow leaf, with teleutospore-sori. Three teleutospores, one germinating, (v. Tubeuf del.) May or June on the leaves, stems, and petioles of the host; all are more or less deformed, and the leaves may in severe cases wither up long before the flowers appear. Sponging with a solution of permanganate of potash (two tablespoonfuls in one nuart of water), has been found an eflective remedy. P. Sherardiana Korn. On mallow in America. P. heterogenea Lager. On hollyhock in South America. P. anemones-virginianae Schwein. On Anemone. ( America.)


Size: 1803px × 2772px
Photo credit: © The Bookworm Collection / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookcentury1800, bookdecade1890, booksubjectparasit, bookyear1897