. Lessons with plants. Suggestions for seeing and interpreting some of the common forms of vegetation. Fio. creeper. occurs in some plants (as in some of the vetches), inwhich the entire foliage is made up of large stipules. 88a. Some of the members in Fig. 63 are probably leaf-like leaf which has no petiole is said to be sessile (». e., sittingJ, aterm applied to any member which is destitute of a stalk or stem. 89. How shall we define the parts in the leaf of 84 LESSONS WITH PLANTS the Virginia creeper (Fig. 79)? The petiole isplain; but shall we say that there are fiv
. Lessons with plants. Suggestions for seeing and interpreting some of the common forms of vegetation. Fio. creeper. occurs in some plants (as in some of the vetches), inwhich the entire foliage is made up of large stipules. 88a. Some of the members in Fig. 63 are probably leaf-like leaf which has no petiole is said to be sessile (». e., sittingJ, aterm applied to any member which is destitute of a stalk or stem. 89. How shall we define the parts in the leaf of 84 LESSONS WITH PLANTS the Virginia creeper (Fig. 79)? The petiole isplain; but shall we say that there are five distinctblades, or that the blade is divided into five parts!Figs. 80 and 81 are leaves from one grape Pig- leaf. Fig. grape leaf. Each plainly is one leaf. The formei has threewell marked lobes, and the latter has these lobesmuch more deeply cut. In fact, there are strongindications of five parts. It is not difficult to imag-ine the clefts extending to the mid-rib, as they THE PARTS OF LEA VES 85 do in the Virginia creeper (which is a very closelyrelated plant), and a compound leaf would be theresult (that is, a leaf in which the blade is com-posed of at least two wholly separated portions). 90. Each part of the Virginia creeper leaf (andalso of the dewberry leaf) is borne upon a distinct
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Keywords: ., bookauthorbai, bookcentury1900, bookdecade1900, booksubjectbotany
