Laboratory 5: Magnoliopsida, Subclass III


Objectives for this lab are to:
  • know the characteristics of the subclass Caryophyllidae
  • learn key features of families and genera of the Caryophyllidae
  • be able to identify structures in preserved, fresh, or mounted specimens of Caryophyllidae
  • identify to subclass, family, and genus for selected members of this subclass
Safety concerns for this lab:  Use caution with dissecting tools, wear protective eyewear if working with specimens preserved in Carosafe, dispose of Carosafe specimens in proper waste container.  Don't pet the cacti.

Note: Family study exercises are designed to acquaint you with the major characters of some important flowering plant families. Follow the guidelines on your instruction sheets. Answer questions and diagram structures ON THE SHEETS and save them to study from. Diagrams, in addition to those requested in the lab instructions, will be useful. For exams, you will be expected to be able to identify structures present in preserved or fresh floral material. Herbarium specimens will be on display during each laboratory period. You should be able to identify these to genus, family, and subclass by recognizing the characters we discuss. For a copy of the overhead presented in lab, click here.

In contrast to the anemophilous Hamamelidae, taxa of the Caryophyllidae are typically insect-pollinated (ENTOMOPHILOUS.) Flowers are often perfect and relatively large and showy.

1. Opuntia-Cactaceae-Caryophyllales:

2. Arenaria-Caryophyllaceae-Caryophyllales:


3. Polygonum-Polygonaceae-Polygonales:

These three examples from the Caryophyllidae provide a demonstration of the perianth diversity encountered in this subclass. Examine additional representative members of the Caryophyllidae displayed in lab:

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last updated Juen 25, 2010 by MDR