Study GuidePlant Biology–A Synopsis of the Living World1. Classification: Plants, Other Organisms1.1How Plant Classification Has Changed Over TimeAbout100 years ago, botanists grouped plants into justfour major categories. As scientists learnedmore—especially by studying structure and life cycles—these broad groups weresplit andrearrangedinto many smaller ones.Within50 years, plant classification became much more detailed. Some of theolder group namesare still familiar today because they are often used ascommon names, such as:•Thallophytes•Gymnosperms•MonocotsEven though the names have changed, manymajor plant groups—likemosses, ferns, andflowering plants—are still recognized today. They now appear undernew scientific (technical)namesin modern classification systems.Preview Mode
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