The principles of biology . THE MOEPHOLOGICAL COMPOSITION OF PLANTS. 65 represented in Fig. 80, willbe produced. When the successiYe frondsare thus folded ^-ound so com-pletely that their oppositeedges meet, these oppositeedges mil be apt to imite: notthat they will grow togetherafter being formed, but thattheywilldeTelopinconnexion; 79 SO or, in botanical language, will become adnate. That foliarsurfaces which, in their embryonic state, are ia close contact,often join into one, is a familiar fact. It is habitually sowith sepals or divisions of the calyx. In aU campanulateflowers it is so with


The principles of biology . THE MOEPHOLOGICAL COMPOSITION OF PLANTS. 65 represented in Fig. 80, willbe produced. When the successiYe frondsare thus folded ^-ound so com-pletely that their oppositeedges meet, these oppositeedges mil be apt to imite: notthat they will grow togetherafter being formed, but thattheywilldeTelopinconnexion; 79 SO or, in botanical language, will become adnate. That foliarsurfaces which, in their embryonic state, are ia close contact,often join into one, is a familiar fact. It is habitually sowith sepals or divisions of the calyx. In aU campanulateflowers it is so with petals. And in some tribes of plantsit is so with stamens. We are therefore well-warranted ininferring, that under the conditions above described, the suc-cessive fronds or leaflets will, by union of their remote edges,first at their points of origin, and afterwards higher up,form sheaths inserted one within another, and including theaxis. This incurving of the successive fronds, ending in the formation of sheaths, may be


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Keywords: ., bookcentury1800, bookdecade1860, booksubjectbiology, bookyear1864