. Natural history object lessons : a manual for teachers. Fig. 48.—Section of Buttercup. Fig. 49.—Incomplete Flower. Anemone. pistil. The first two are non-essential: the stamens and pistilare essential organs. When all are present the flower is saidto be a complete flower ; when one or more of the parts arewanting the flower is said to be incomplete. Some flowers ^have a calyx, but no corolla; while in some the ca^yx only isabsent. Some have stamens without a pistil, and others apistil without stamens : but as these organs are both essentialto the production of seed, when one flower has stame
. Natural history object lessons : a manual for teachers. Fig. 48.—Section of Buttercup. Fig. 49.—Incomplete Flower. Anemone. pistil. The first two are non-essential: the stamens and pistilare essential organs. When all are present the flower is saidto be a complete flower ; when one or more of the parts arewanting the flower is said to be incomplete. Some flowers ^have a calyx, but no corolla; while in some the ca^yx only isabsent. Some have stamens without a pistil, and others apistil without stamens : but as these organs are both essentialto the production of seed, when one flower has stamens orpistils only, another plant of the same kind will bear flowers 40 NATTJEAL HISTORY OBJECT LESSONS. with pistils or stamens only. A few plants bear separate flowers of both kinds. Flowers exhibit great variety in form, in colour, in arrange-ment on their stalks,in the relative posi-tion and number ofthe various parts,&c. For all thesethe reader is referredto the simple text-book already re-ferred to. We shallcontent ourselveshere with lookin
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