. Bulletin du Jardin botanique de Buitenzorg. Plants -- Indonesia; Plants. DOCTERS VAN Leeuwen : Galls of Krcikataii and Sebesy. 297 Besides the above named thrips also Gynaikothrips gracilis Karny vvas found on the leaves, Sebesy-island, Cocos-jungle, April 22nd 1Q21. No. 50Q5. No. IQ. Ficus fistulosa REINW. A leaf-gall caused by a gall-mite. Already described from Krakatau. Granular accu- mulations on the undersurface of the leaf. The galls of Krakatau are very small (average size of the irregular excrescences 1 —2 mM.), those of Sebesy are much bigger (average size about 12 mM). Krakatau-Is
. Bulletin du Jardin botanique de Buitenzorg. Plants -- Indonesia; Plants. DOCTERS VAN Leeuwen : Galls of Krcikataii and Sebesy. 297 Besides the above named thrips also Gynaikothrips gracilis Karny vvas found on the leaves, Sebesy-island, Cocos-jungle, April 22nd 1Q21. No. 50Q5. No. IQ. Ficus fistulosa REINW. A leaf-gall caused by a gall-mite. Already described from Krakatau. Granular accu- mulations on the undersurface of the leaf. The galls of Krakatau are very small (average size of the irregular excrescences 1 —2 mM.), those of Sebesy are much bigger (average size about 12 mM). Krakatau-Island, about 800 M. April 26th 1919, No. 3690; ait 100 M. January 20th. 1922. N. 6008. Sebesy-island, secondary forest, April 23th 1921. No. 5132. Literatiire: D. v. L. Krakatau. No. 3. figure 4. m^\ m il'i. vsti^j Fig. 7. A midge-gall on Ficus fistulosa 1- Fig. 8, A midge-gall on Ficus gibbosa Bl. X 1. * No. 20. Ficus fistulosa REîNW. A leaf-gall caused by a gall-midge. On thebark of the twigs are developed irregular corky out- growths which consist of a great number of small galls. Each gall has a iarval chamber tenanted by a small gall-midge larva. See accompanying figure 7. Average size 20—50 mM ; depth of the gall layer about 3 mM. Sebesy-island, forest, about 200 M, April 25th 1921. No. 5268. * No. 21. Ficus gibbosa BL. A leaf-gall caused by a gall-midge (prob). The galls are developed on both sides of the leaf-blade. On the uppersurface they are flat, semi-ballshaped excrescences of a dark-green colour, on the undersurface they are more irregular, also semi-ballshaped, or more or less conical. See figure 8. The galls having been abandoned by their inhabitants, 1 am tôt quite sure about the group to which they belong. Average size about 2'/4 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 wo
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