The Morton Arboretum's Naturalist Certificate Program
Plant Families of the Midwest   - Winter 2001

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Worksheet 2 - Fruits NAME:                                                           

Lab 2a: Examples of fruit types (notes on back)

Lab 2b: Plants of the World: looking at fruits

In small groups, locate these displays. Work together to discuss and fill-in this page.
50: Rose Family Rosaceae: What are five common fruit types found in this large family?
 
 
Edible Fruits Use this display to understand some of the fruit types and to find examples to fill in on the vocabulary sheet.
Look for Single Fruit, Aggregate Fruit, Multiple Fruit.
Berry, Drupe, Pome
Fruit Vegetables Cucurbitaceae, Squash Family. What is the fruit type?  
Solanaceae, Tomato Family. What is the fruit type?  
37: Heath Family Ericaceae What type of fruits are Blueberry and Cranberry?  
52: Poison Ivy Family Anacardiaceae What fruit types are found in this family? List a few examples.  

Grains Gramineae or Poaceae: Fruit type is the GRAIN (or caryopsis).
77 - Grass flower Note how grass flowers are reduced and specialized for wind pollination. Flowers can be grouped into spikelets.

Legumes

Bean Family

Leguminosae or Fabaceae: Fruit type is the LEGUME.
Look at the variety of beans, both as legumes (pods) and seeds. Note the growth habit of the peanut which pushes the developing fruits underground.
37: Glide, stick, float, pop A variety of adaptations for fruits and seeds for dispersal. Specimen A. shows SAMARA of maple. Specimen H. shows ACHENE of goatsbeard which has a calyx modified into a "parachute".

Patrick R. Leacock
Education Program Developer / Research Scientist (Biology)
Department of Botany, The Field Museum, Chicago, IL 60605-2496
E-mail: pleacock@fieldmuseum.org