. American bee journal. Bee culture; Bees. Fig. 2.—Cross-section of the upper part of the pedicel and nectary before the cavity of the latter divides into two, magnified 17 diameters. doors through which insects must reach the nectar secreted in the lower part of the tubes. To see the difference in the structure of the upper, non-secreting, and the lower, secreting, part of these tubes, it will be necessary, with a very sharp ra- zor, to cut off thin sections of the flower-. Fig. 3.—Part of the wall of the nectary at the same point, magnified 200 diameters to show the simi- larity between the
. American bee journal. Bee culture; Bees. Fig. 2.—Cross-section of the upper part of the pedicel and nectary before the cavity of the latter divides into two, magnified 17 diameters. doors through which insects must reach the nectar secreted in the lower part of the tubes. To see the difference in the structure of the upper, non-secreting, and the lower, secreting, part of these tubes, it will be necessary, with a very sharp ra- zor, to cut off thin sections of the flower-. Fig. 3.—Part of the wall of the nectary at the same point, magnified 200 diameters to show the simi- larity between the epidermal cells on the outside (2) and those lining the cavity (1;. stalk and adhering spur at different points, and to study these with the mi- croscope. Such a section, taken very near the upper end of the tube, and be- fore it has divided, is represented in Pig. 3, magnified 17 diameters, and a small part of the same section is shown more highly magnified in -Fig. 4. A glance at the latter shows that the cells (1) which line the cavity of the spur, differ very little in size or shape from those (2) which cover the outside of the spur. Fig. 5 represents a similar. 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 [Hamilton, Ill. , etc. , Dadant & Sons]
Size: 1591px × 1571px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bo, bookcentury1800, bookdecade1860, booksubjectbees, bookyear1861
