. Botany of the living plant. Botany. 164 BOTANY OF THE LIVING PLANT to those of the previous year. Most of these plants form their leaves first, and they have the advantage of developing more rapidly than in germination, as they can draw on the store already in hand. But some flower at once, even before their vegetative leaves are fully formed, as in the Christmas Rose {Helleborus), the Crocus, and Snowdrop. For the disposal of their store a slight distension of the tissues is often sufficient in these herbaceous perennials. This is seen in the. Pc-rennial slock of Ins. Fig. 122. \'C
. Botany of the living plant. Botany. 164 BOTANY OF THE LIVING PLANT to those of the previous year. Most of these plants form their leaves first, and they have the advantage of developing more rapidly than in germination, as they can draw on the store already in hand. But some flower at once, even before their vegetative leaves are fully formed, as in the Christmas Rose {Helleborus), the Crocus, and Snowdrop. For the disposal of their store a slight distension of the tissues is often sufficient in these herbaceous perennials. This is seen in the. Pc-rennial slock of Ins. Fig. 122. \'C' yearly growtlis (.\fter Figiiier.) Iris (Fig. 122), where the short stock grows onwards from vear to vear, bearing fresh leaves each season and axillary buds, and storing each year's surplus in the massive stem. In other cases the various parts may be considerably changed in their proportions. Thus the roots of the Dahlia are swollen to hold inulin (Fig. 123), and root-storage is also seen in the native Orchids, in Ranunculus Ficaria, and in Spiraea filipend-ula. But it is -more frequently the stem, or rhizome as it is called when underground, that is distended for storage. The familiar corm of the Crocus is simply an abbreviated upright stem, a given. 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 Bower, F. O. (Frederick Orpen), 1855-1948. London, Macmillan and co. , limited
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1919
