British grasses and their employment in agriculture . .,--. Fig. 1. Showing mass of fibrous roots produced by wheat plantswithin seven weeks after sowing in pot. Stems. The flowering stems—termed culms—are cylindrical,and hollow except at the nodes, where they are Arm and solid(Figs. 2, 3 and 4). Each node—or joint—forms the point of attach-ment of a leaf. The portions of the stem between the nodes are theinternodes. Every stem arises within the axil of a each stem grows up within the sheath close tufts of foliage areformed ( Oat). This is known as the intra-vaginal mode of
British grasses and their employment in agriculture . .,--. Fig. 1. Showing mass of fibrous roots produced by wheat plantswithin seven weeks after sowing in pot. Stems. The flowering stems—termed culms—are cylindrical,and hollow except at the nodes, where they are Arm and solid(Figs. 2, 3 and 4). Each node—or joint—forms the point of attach-ment of a leaf. The portions of the stem between the nodes are theinternodes. Every stem arises within the axil of a each stem grows up within the sheath close tufts of foliage areformed ( Oat). This is known as the intra-vaginal mode of CII. I] The Morphology of Grasses growth. If however the shoots pierce through the sheathsclose to where they arise and grow out horizontally (the extra-vaginal mode of growth), the stems and foliage become more or lessscattered and intermingled with other plants. Thus the appearance,habit, and agricultural use of a particular species depend largelyupon whether the shoots are mainly intra-vaginal, or extra-vaginalin their mode of growth. In the Oa
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, booksubjectgr
