|Plants & Human Affairs (BIOL106) - Stephen G. Saupe, Ph.D.; Biology Department, College of St. Benedict/St. John's University, Collegeville, MN 56321; email@example.com; http://www.employees.csbsju.edu/ssaupe|
Pre-Lab: Deciduous Trees & Shrubs
Print a copy of the Checklist to Trees & Shrubs and bring a copy to lab.
Be prepared to spend the lab period outdoors. Dress appropriate, apply sunblock and insect repellent as necessary (available in Bailey Herbarium)
Deciduous tree lab and then answer the questions below.
In the space below, complete the sketches for Figure 1 and Figure 2.
|Fig. 1. Sketch of a twig with 4 simple leaves, each leaf with an entire leaf margin. The leaves are attached to the stem alternately||Fig. 2. Sketch of a pinnately compound leaf with 7 leaflets; each leaflet has a serrate leaf margin|
How can you tell the difference
between a tree and shrub?
What is the foolproof method to
distinguish between a simple leaf and a compound leaf?
What is a bud?
Name the family of woody plants
at CSB/SJU that is represented by the greatest number of species (hint: see
the checklist of species available on the web).
Name the genus of woody plants at CSB/SJU that is represented by the greatest number of species.
Fill-in-the-Blanks: write the appropriate species in the blank
|3||opposite leaves, winged fruits that occur in pairs|
|5||good for carving and honey|
|6||palmately compound leaves, large brown seed|
|7||introduced shrub that has escaped into our woodlands|
|8||large heart shaped leaves, hard seeds attached to modified leaf|
|9||white or grayish peeling bark|
|10||heart-shaped leaves, long thin brown pods|
produces cyanide, glands on the leaf stalk
veins cobwebby when broken
have veins that run to tip of the leaf (2 possible answers)
|14||thorns on trunk of native tree, cultivated variety unarmed, compound leaves,|
|15||understory tree with fruit clusters that look like flavoring produce for beer|
huge leaves, doubly compound, salmon-colored pith, hard seeds make a beverage
|17||shrub whose twigs are chewed to relieve a toothache (2 possible answers)|
|18||elongated pods that were probably dispersed by mastodons|
|19||fruit cluster makes a lemonade substitute|
|20||seeds are eaten, husk and bark used to make a vegetable dye|
|21||common prairie tree, around farmsteads (more than one possible answer)|
|22||often infected with a "witches broom"|
Last updated: 09/08/2005 / � Copyright by SG Saupe