. Lessons with plants. Suggestions for seeing and interpreting some of the common forms of vegetation. Pig. 314. fiG. 315. Navel orange. Staminate catkin of mulberry. Pig. 316. Pistillate catkinof mulberry. Fig. 315 is a staminate catkin. One of the flowersis enlarged. It has fdur sepals (for the flowersare apetalous), which are involute about the fila- 304 ZHSSONS WITS PLANTS. Fig. fruit. ments. A gland-like body in the centersuggests a rudiment of a pistil. 365. The pistillate catkin is shownin Fig. 316. The flower has two styles,and four sepals which adhere closelyto the ovary.
. Lessons with plants. Suggestions for seeing and interpreting some of the common forms of vegetation. Pig. 314. fiG. 315. Navel orange. Staminate catkin of mulberry. Pig. 316. Pistillate catkinof mulberry. Fig. 315 is a staminate catkin. One of the flowersis enlarged. It has fdur sepals (for the flowersare apetalous), which are involute about the fila- 304 ZHSSONS WITS PLANTS. Fig. fruit. ments. A gland-like body in the centersuggests a rudiment of a pistil. 365. The pistillate catkin is shownin Fig. 316. The flower has two styles,and four sepals which adhere closelyto the ovary. 366. A mulberry fruit is shown inFig. 317. It is composed of as manyparts as -there were pistils in the pis-tillate catkin. The stigmas seem to have disappeared, but the sepals have persisted;in fact, it is the thickened and fleshy sepals whichcomprise most of the edible part of the fruit. The mulberry fruit, therefore, is an entire flower - cluster. 366a. The mulberry isan example of what iscalled a multiple or col-lective fruit. Look at thepineapple. 366!/. A mulberry lookslike a blackberry. How dothey differ ? 367. Figs areshown in Fig. arise from theaxils of leaves, asnormal branches do. pjq. 319 Each fig is an Obo- Pruit of Sg in section.
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Keywords: ., bookauthorbai, bookcentury1900, bookdecade1900, booksubjectbotany
