. The elements of structural botany [microform] : with special reference to the study of Canadian plants, to which is added a selection of examination papers. Plant anatomy; Botany; Plantes; Botanique. UNDERGROUND STEMS. 105 ^ulms. They are jointed, and usually hollow except at the joints. 151. Besides the stems which grow above ground, there are varieties to be found below the surface. Pull up a Potato plant, and examine the underground portion (Fig. 136). It is not improbable that you will regard the whole as a mass of roots, but a very little trouble will undeceive you. Many o^ the fibres a
. The elements of structural botany [microform] : with special reference to the study of Canadian plants, to which is added a selection of examination papers. Plant anatomy; Botany; Plantes; Botanique. UNDERGROUND STEMS. 105 ^ulms. They are jointed, and usually hollow except at the joints. 151. Besides the stems which grow above ground, there are varieties to be found below the surface. Pull up a Potato plant, and examine the underground portion (Fig. 136). It is not improbable that you will regard the whole as a mass of roots, but a very little trouble will undeceive you. Many o^ the fibres are unquestionably i'l. Fig. 136. roots, but an inspection of those having potatoes at the ends of them will show you that they are quite different from those which have not. The former will be found to be furnished with little scales, answering to leaves, each with a minute bud in the axil; and the potatoes them selves exhibit buds of the same kind. The potato, in short, is only the sivojlen end of an underground oucii swollen extremities are known as tubers, whilst the Fig. 136.—Tubere of the Potato. IP 1 1. 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 Spotton, H. B. (Henry Byron), 1844-1933. Toronto : W. J. Gage
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectbotany, booksubjectpl
