. Carnegie Institution of Washington publication. . 1 LOW DISEASE OF HYACINTHS. (1) Cross-section of bulb, showing in center. Haarlem, 1906. (2) Check-lube of litmus milk. (3) /â 10 days in li 1) 2 days in litmus milk at J (5) Plant 79, variety blue Baron van Tuyll, ii -mugh the flowers. Painted after 17 days. (6) Cross-section of infected bulb-scale. The cells of the parenchyma contain starch grains, but only a few are indicated. The xylem and adjacent parenchyma are disorganized ; the phloem is uninjured. After Wakker. (7) Cross-section of a bulb, showing secondary infection. The center ided


. Carnegie Institution of Washington publication. . 1 LOW DISEASE OF HYACINTHS. (1) Cross-section of bulb, showing in center. Haarlem, 1906. (2) Check-lube of litmus milk. (3) /â 10 days in li 1) 2 days in litmus milk at J (5) Plant 79, variety blue Baron van Tuyll, ii -mugh the flowers. Painted after 17 days. (6) Cross-section of infected bulb-scale. The cells of the parenchyma contain starch grains, but only a few are indicated. The xylem and adjacent parenchyma are disorganized ; the phloem is uninjured. After Wakker. (7) Cross-section of a bulb, showing secondary infection. The center ided by a soft while rol and by mites. Haarlem, August, 1906. (8) Outer face of a badly diseased scale. (9) Inner (ace of badly diseased bulb-scale. (10) Inner face of badly diseased bulb-scale, (II) Vertical section of a bulb, showing a secondary infection; the base is occupied by fruiting hyphae of a Penicillium. All from Haarlem, Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Carnegie Institution of Washington. Washington, Carnegie Institution of Washington


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Keywords: ., bookauthorcarnegie, bookcentury1900, bookdecade1910, bookyear1911