LABORATORY 1: EXERCISE IN BASIC TAXONOMY: CLASSIFICATION - NOMENCLATURE - IDENTIFICATION


Work in teams of two. Obtain a box of bolts to work with. BE SURE THAT ALL BOLTS - NO MORE AND NO LESS - ARE RETURNED AT THE END OF THE LAB PERIOD.

Our objectives for today are to: 1) develop a bolt CLASSIFICATION system by placing bolts into groups having common characters and arranging the groups into a system (TAXONOMY = SYSTEMATICS), 2) apply names to the groups (NOMENCLATURE), and 3) use characteristics of the bolts to construct a DICHOTOMOUS KEY which can be used for IDENTIFICATION.

If you would like to review the basics of Classification, Nomenclature, or Key-makinig, click here


A. CLASSIFICATION

Identification cannot be accomplished until all objects under consideration are included in a CLASSIFICATION SYSTEM.

B. NOMENCLATURE

Classification of your bolt "species" based on characteristics of the pileus probably resulted in the creation of three groups, each having five "species". Following the botanical hierarchy, we can assign these three taxa the rank of "genus".


C. IDENTIFICATION

Your classification and nomenclatural systems for the Stoveaceae are complete. Now you can put your work to practical use through the development of a DICHOTOMOUS KEY . The key will allow anyone to identify any individual member of the Stoveaceae to "genus" and "species" in your classification system.


**Notice that the bolt family is called the Stoveaceae and not the Boltaceae. Why? It is called the Stoveaceae because there used to be a type of bolt called a Stove bolt that is considered to be most typical of the family.

Return to the Table of Contents for the lab
Return to the Botany 201 homepage


Go on to the next lesson page. You may use the above key as a starting point, filling in the couplet numbers as you assign them. Contrasting characteristics can be found in your data table, although you are free to use any aspect of bolt morphology. Remember that the more concrete a characteristic is, the better basis for a couplet it makes. When your key is completed, run a few bolts through it to check for accuracy. Finally, use keys that have been produced by other teams. Compare methods of organization, key characters used, and relative efficiency. Also note the confusion that results from production of many names for the same object. This is a major reason for the establishment of an International Code of Botanical Nomenclature. **Notice that the bolt family is called the Stoveaceae and not the Boltaceae. Why? It is called the Stoveaceae because there used to be a type of bolt called a Stove bolt that is considered to be most typical of the family. KEY TO GENERA AND SPECIES OF THE STOVEACEAE: are free to use any aspect of bolt morphology. Remember that the more concrete a characteristic is, the better basis for a couplet it makes. When your key is completed, run a few bolts through it to check for accuracy. Finally, use keys that have been produced by other teams. Compare methods of organization, key characters used, and relative efficiency. Also note the confusion that results from production of many names for the same object. This is a major reason for the establishment of an International Code of Botanical Nomenclature. **Notice that the bolt family is called the Stoveaceae and not the Boltaceae. Why? It is called the Stoveaceae because there used to be a type of bolt called a Stove bolt that is considered to be most typical of the family. KEY TO GENERA AND SPECIES OF THE STOVEACEAE: