. Elementary botany . Fig. 293. Abnormal trillium. The nine parts of the perianth are green, and the outer whorls of stamens are expanded into petal -like members. is made up It is now more evident that this curious body, the pisti of three leaf-like members which have fused together, each mem- ber being the equivalent of a sporophyll (here the mac rosporo- phyll). This must be a fascinating observation, that plants of such widely different groups and of such different grades of complexity should have members formed on the same plan and belonging to the same series of members, devoted to simil
. Elementary botany . Fig. 293. Abnormal trillium. The nine parts of the perianth are green, and the outer whorls of stamens are expanded into petal -like members. is made up It is now more evident that this curious body, the pisti of three leaf-like members which have fused together, each mem- ber being the equivalent of a sporophyll (here the mac rosporo- phyll). This must be a fascinating observation, that plants of such widely different groups and of such different grades of complexity should have members formed on the same plan and belonging to the same series of members, devoted to similar functions, and yet carried out with such great modifications that at first we do not see this common meeting ground which a comparative study brings out so clearly. 446. Transformations of the flower of trillium.— If anything more were needed to make it clear that the parts of the (lower of trillium belong to the leaf series we could obtain evidence from the transformations which
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Keywords: ., bookcentury1800, bookdecade1890, bookpublisher, booksubjectbotany
