. Botany for high schools. Botany. THE FRUIT: DEHISCENT FRUITS 191 fruits, but the fleshy part of the fruit is not of the same origin as the fleshy part of the true drupes, like the cherry, peach, plum, etc. III. DEHISCENT FRUITS. loe Sep SepUtngal Fig. 151. Diagrams illustrating three types (in cross section) of the dehiscence of dry fruits. Loc^ loculi- cidal; Sep, Septicidal, Septifragal. Of the dehiscent fruits several prominent types are recognized. 318. The capsule. When the capsule is syncarpous (com- pound pistil) it may dehisce in three different ways: ist. The carpels split along the
. Botany for high schools. Botany. THE FRUIT: DEHISCENT FRUITS 191 fruits, but the fleshy part of the fruit is not of the same origin as the fleshy part of the true drupes, like the cherry, peach, plum, etc. III. DEHISCENT FRUITS. loe Sep SepUtngal Fig. 151. Diagrams illustrating three types (in cross section) of the dehiscence of dry fruits. Loc^ loculi- cidal; Sep, Septicidal, Septifragal. Of the dehiscent fruits several prominent types are recognized. 318. The capsule. When the capsule is syncarpous (com- pound pistil) it may dehisce in three different ways: ist. The carpels split along the line of their union with each other longitudinally, as in the azalea or rhododendron. 2d. The car- pels split down the middle line, as in the fruit of the iris, lily, etc. 3d. The carpels open by pores, as in the poppy. Some syncarpous capsules have but one locule, the partitions between the different locules when young having disappeared. The bouncing-bet" is an example, and the seeds are attached to a central column in four rows corre- sponding to the four locules present in the young stage. 319. A follicle is a cap- sule with a single carpel which splits open along the ventral or upper suture, as in the larkspur, peony. 320. The legume, or true pod, is a capsule with a single ^carpel which splits along both sutures, as the pea, bean, vetch, etc. As the pod ripens and dries, a strong twisting tension is often produced, which splits the pod suddenly, scattering the seeds. 321. The silique. In the toothwort, shepherd's-purse, and nearly all of the plants in the mustard family, the fruit consists of two united car-. Fig. 152. Pcds of Sweet 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 Atkinson, George Francis, 1854-1918. New York, H. Holt and Company
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1910
