. Economic entomology . Bract of Tilia parvifolia with margin of leaf rolled in by Phytoptus tiliarius Copied from figure by Low. Phytoptus tiliarius, makes knotty, curled-in margins on the bracts- of the flower of Tilia parvifolia; and a sixth (Phyllerium tiliaceum, Pers.) which makes little lumps on the under side of the leaf. Nos. Phytoptus aceris (Volvulifex aceris, Amei-ling, which produces Ceratoneon> «7—33- vulgare, Bremi, on the leaf of the sycamore).—17. Sycamore leaf bear- ing galls of ditto ; 18. Sketch of ditto ; 19. Sketch of leaf of variegated sycamore (Acer pseudoplatanus, va
. Economic entomology . Bract of Tilia parvifolia with margin of leaf rolled in by Phytoptus tiliarius Copied from figure by Low. Phytoptus tiliarius, makes knotty, curled-in margins on the bracts- of the flower of Tilia parvifolia; and a sixth (Phyllerium tiliaceum, Pers.) which makes little lumps on the under side of the leaf. Nos. Phytoptus aceris (Volvulifex aceris, Amei-ling, which produces Ceratoneon> «7—33- vulgare, Bremi, on the leaf of the sycamore).—17. Sycamore leaf bear- ing galls of ditto ; 18. Sketch of ditto ; 19. Sketch of leaf of variegated sycamore (Acer pseudoplatanus, var. Leopoldi), bearing galls of ditto ;. 20. Specimen of ditto; 21. Leaf of sycamore bearing galls on under side, showing the woolly entrance to the gall; 22. Sketch of ditto j. 23. Magnified section of gall of ditto.
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Photo credit: © The Bookworm Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1870, bookpublisherlondonchapmanandha
