Lab Quiz 3 Name: _____________________

BioPl 243 TA: Pam White

Sect. 01

14 Oct 1998

This quiz is worth 20 points. There are five stations corresponding to the five questions. Good luck!

1. (10 points) Complete the following table. For each category, choose one of the plant families represented at this station. Indicate the letter of the plant in the first column, a distinctive feature in that category in the second column, and the plant family in the third column. Note that the feature must be distinctive for that family (i.e. "tendrils" are found in many families, and therefore not distinctive for Vitaceae). You may use each family only once.

Example:

 

PLANT

DISTINCTIVE FEATURE

FAMILY

Androecium (stamens)

X

diadelphous stamens

Fabaceae

Some examples of answers:
 

PLANT

DISTINCTIVE FEATURE

FAMILY

Vegetative

A

G

Interpetiolar stipules

Pucntate gland dots in leaves

Rubiaceae

Rutaceae

Inflorescence

E

I, K

Umbel

Cyathium

Apiaceae

Euphorbiaceae

Androecium (stamens)

J

D

Connivent stamens

"2 + 2" filaments

Solanaceae

Scrophulariaceae

Pistil

F

E

I,K

Gynobasic style/4-lobed ovary

Stylopodium

Superior 3-lobed ovary w/forked style

Lamiaceae

Apiaceae

Euphorbiaceae

 

2. ( 2 points)

a) Why is it erroneous to call these "caraway seeds"? (Be specific!)

They are not seeds. They are the mericarps of the schizocarpic fruits.

b) Which family is represented here? Apiaceae

3. (2 points)

  1. Many of the fruits eaten in this family are misshapen from years of intense selection by man, and no longer resemble the "wild" forms. Which of these fruits most closely resembles those found in the wild and why (hint: pay attention to the number of locules)? Cherry tomato (E) or chili pepper (C)
  2. Which family is represented here?Solanaceae

4. (4 points) A delectable snack (for those who would like to try!)

a) Of the families covered in the last two labs, three are represented here by the artichoke and the ingredients listed on the dipping sauce. List them:

Ingredient:

Family:

artichoke

Asteraceae

cilantro

 		 

Apiaceae

lime

 		 

Rutaceae

b) This inedible, bristly "choke" of the artichoke is usually discarded. What are you discarding when you throw out the choke?
the florets

5. (2 points)

a) Although the flowers are not present, you should be able to identify this plant by the specific type of fruit shown here. What is the appropriate term for this fruit type? samaroid schizocarp

b) Which family is represented here? Aceraceae