. A contribution to the morphology and biology of insect galls. Galls (Botany). 358 Transactions of the Canadian Institute [vol. I In galls other than the Cynipidae, the only cytological phenomen that presented unusual features were found in the orders Diptera an Lepidoptera. An unusual type of cell division was observed in the corte and epidermis of Neolasioptera perfoliata Felt (Text Fig. 7) and in th cortex of Gnorimoschema gallcBasterella Kellicott and Stagmatophot ceanothiella Cosens. This has been already referred to in the descripti\ part of the paper and only the main features will be
. A contribution to the morphology and biology of insect galls. Galls (Botany). 358 Transactions of the Canadian Institute [vol. I In galls other than the Cynipidae, the only cytological phenomen that presented unusual features were found in the orders Diptera an Lepidoptera. An unusual type of cell division was observed in the corte and epidermis of Neolasioptera perfoliata Felt (Text Fig. 7) and in th cortex of Gnorimoschema gallcBasterella Kellicott and Stagmatophot ceanothiella Cosens. This has been already referred to in the descripti\ part of the paper and only the main features will be noted here. Th mother cells produce from 2 to 5 daughter cells and these remain i groups that are easily recognizable. The elongated nuclei are found i contact with the .septating walls but not exactly opposite each othe In the Dipterous genus Neolasioptera this was the only form of ce division that occurred in the gall, but in the Lepidopterous genera was found only in a limited area of the abnormal 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 Cosens, A. (Absalom), d. 1938; University of Toronto. Theses (Ph. D. ). [Toronto : University Press]
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectgallsbo, bookyear1912
