. Lessons with plants. Suggestions for seeing and interpreting some of the common forms of vegetation. ly flower, showing gradations of parts. the petals in the same way. This can be wellmade out in the picture; and the gradation is THE KINSHIPS OF THE FLOWER 201 also shown (from 3 to 1) in Fig. 147. The waterlily is not the only plant which shows similargradations; from which we may conclude thatleaves, sepals, petals and stamensappear to be derived from the sametype of plant member, or are seri- eally related to eachother. 230. The cannaflower should bestudied in this con-nection (Fig. 196).
. Lessons with plants. Suggestions for seeing and interpreting some of the common forms of vegetation. ly flower, showing gradations of parts. the petals in the same way. This can be wellmade out in the picture; and the gradation is THE KINSHIPS OF THE FLOWER 201 also shown (from 3 to 1) in Fig. 147. The waterlily is not the only plant which shows similargradations; from which we may conclude thatleaves, sepals, petals and stamensappear to be derived from the sametype of plant member, or are seri- eally related to eachother. 230. The cannaflower should bestudied in this con-nection (Fig. 196).ovary is at p, the sepalsat s, three pointed petalsat c c c, and the style ate. An anther locule isplainly shown at /, and inthe live plant this is veryconspicuous. The organwhich bears it, therefore,must be a stamen. Butthis stamen is a leaf-likebody, and extends beyondthe anther into a more or less curled, petal-likecolored part. This extension of the stamen isthought by some botanists to be a transformedanther locule, and by others to be an outgrowthof the filament; but whatever its morphology,. Fig. flower. 202 i^jsssoj^s witm plants it plainly shows the closeto the petal and the leaf. kinship of the antherThere are no otherstamens in the their positions,and from homologywith related flowers,the showy parts ofthe flower, a a a a,are held to representstamens. 230o. In common with allsterile or antherless stamens,and bodies which stand in theplace of stamens, these petal-like bodies are called stamino-dia. The pupil will find twostaminodia, in the shape ofrudimentary bodies, in , standing just below theconnectives. 231. The sterculia,or so-called Japanesevarnish tree, which isnow much cultivatedin the South, has amost curious methodof bearing its seeds,as shown in Fig. carpels separate, even before maturity, intoleaf-like bodies, upon which the seeds are borne.
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Keywords: ., bookauthorbai, bookcentury1900, bookdecade1900, booksubjectbotany
