 | 1906 - 568 páginas
...it be now opened the egg can still be seen lying within the cavity. The embryonic development is as yet unfinished and three weeks elapse before the larva...cause of cell activity, and leads to gall formation. ' ' MW Beyerinck, in a paper regarding the growth of the gall of Nematus caprea on Salix amygdaliua... | |
 | Melville Thurston Cook - 1904 - 2 páginas
...it be now opened the egg can still be seen lying within the cavity. The embryonic development is as yet unfinished and three weeks elapse before the larva...cause of cell activity, and leads to gall formation. ' ' MW Beyerinck, in a paper regarding the growth of the gall of Nematus caprea on Salix amygdalina... | |
 | 1916 - 392 páginas
...If it be now opened, the eggs can be seen lying within the cavity. The embryonic development is, as yet, unfinished ; and three weeks elapse before the...caused by the fly is the immediate exciting cause of cell-activity, and leads to gall-formation." Still another instance of vegetable tumor-formation is... | |
 | 1903 - 588 páginas
...Them. 123 opened the egg can still be seen lying within the cavity. The embryonic development is as yet unfinished and three weeks elapse before the larva...cause of cell activity, and leads to gall formation." MW Beyerinck, in a paper regarding the growth of the gall of Nematus caprea on Salix amygdalina holds... | |
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... altered appearance, and new cell formation begins freely, leading to a thickening of the surrounding leaf surface. After the lapse of about fourteen days the green and red-shaped gall is fully grown. If it be now opened the egg can still be seen lying... 