. Foundations of botany. 202 FOUNDATIONS OF BOTANY. each other or distinct^ or they may cohere by their fila-ments into a single group, when they are said to bemonadelphous, of one brotherhood (), into two groups (diadelphous) (), or into many groups. In someflowers the stamens are held together ina ring by their coherent anthers (). 216. Union of Pistils. — The pistilsmay be entirely separate from eachother, distinct and simple^ as they are Fig. 144. —Bell-Shaped . , , Corolla of Beii-Fiower ni the buttcrcup and the stonecrop, or {Campanula). scvcral may join to form one

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. Foundations of botany. 202 FOUNDATIONS OF BOTANY. each other or distinct^ or they may cohere by their fila-ments into a single group, when they are said to bemonadelphous, of one brotherhood (), into two groups (diadelphous) (), or into many groups. In someflowers the stamens are held together ina ring by their coherent anthers (). 216. Union of Pistils. — The pistilsmay be entirely separate from eachother, distinct and simple^ as they are Fig. 144. —Bell-Shaped . , , Corolla of Beii-Fiower ni the buttcrcup and the stonecrop, or {Campanula). scvcral may join to form one compound pistil of more or less united carpels. In the latter case the union generally affects the ovaries, but often leaves the styles separate, or it may resultin joining ovaries and styles, butleave the stigmas separate or at anyrate lobed, so as to show of howmany separate carpels the compoundpistil is made up. Even when thereis no external sign to show thecompound nature ofthe pistil, it can usu- /}\^#-^ ally be recognized J^from the stud

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Keywords: ., bookcentury1900, bookdecade1900, booksubjectplants, bookyear1901