. Animal Life and the World of Nature; A magazine of Natural History. in both cases they open at the higher end:if they opened below, the seeds would simplydrop to the ground, but as it is they lie inthe cup till some high wind gives it a goodshake and throws them to a distance. Perhaps you will say that these are merefancies—purely accidental coincidences. Let us thenlook atour treesand shrubs. Hence, I think, we see that the arrange-ment of the capsule in each species isthat most suitable to the general habit ofthe plant. In many plants with seed capsules—such as poppies (Fig. 5) and cam-pan
. Animal Life and the World of Nature; A magazine of Natural History. in both cases they open at the higher end:if they opened below, the seeds would simplydrop to the ground, but as it is they lie inthe cup till some high wind gives it a goodshake and throws them to a distance. Perhaps you will say that these are merefancies—purely accidental coincidences. Let us thenlook atour treesand shrubs. Hence, I think, we see that the arrange-ment of the capsule in each species isthat most suitable to the general habit ofthe plant. In many plants with seed capsules—such as poppies (Fig. 5) and cam-panulas (bell flowers)—the capsules whenripe open at the top. The first highwind swings the cup from side to sideand thus scatters the seeds. There are a great many campanulas,and there is a cmious difference ia thecapsules; some open at the free end, someat the base. Why is this ? I have sug-gested that it depends on the positionassumed by the capsules. In some speciesthey stand upright and in these they openat the summit: in others the capsules hangdown and these open at the base. Thus
Size: 1350px × 1851px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, bookpublisherlondo, bookyear1902
