. Fig. 64. — Downy-mildew as seen from the lower surface of the leaf. After Heald.

---

Size: 2211px × 2261px
Photo credit: © The Bookworm Collection / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookcentury1900, bookdecade1920, bookpublishernewyo, bookyear1921