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

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Magnoliopsida Part 2: a comparison of Rosidae families.
This page has comparison of floral formulas.
For Images please use the links below.

The following link is to the site that I am using for lectures.
BOTANY 301 - TAXONOMY OF FLOWERING PLANTS
This page is the index to the following pages for each Subclass which then link to the families, or you can link directly to the family pages from here if you don't want to read about the SubClasses.

Below are the links for each family and the floral formulas. CA = Calyx, CO = Corolla, A = Androecium, G = Gynoecium. A line below the G = Hypogynous flower (ovary superior); a line above the G = Epigynous flower (ovary inferior). A circle around a number means the parts are fused. A half circle or curve below something means partial or basal fusion of those parts. Z = Zygomorphic. The infinity symbol (sideways 8) means numerous parts. The long curved line below the Calyx, Corolla, and Androecium indicates fusion of their bases into a hypanthium.


Magnoliopsida

The Subclass Rosidae

The Order Rosales

Rosaceae - the Rose Family
Rosaceae

Saxifragaceae - the Saxifrage Family
Saxifragaceae


The Order Fabales

Fabaceae - the Bean Family
= Leguminosae or the pea family
Fabaceae


The Order Myrtales

Onagraceae - the Evening Primrose Family
Onagraceae


The Order Euphorbiales

Euphorbiaceae - the Spurge Family
Euphorbiaceae


The Order Geraniales

Geraniaceae - the Geranium Family
Geraniaceae
     There can be 5 or 10 or 15 stamens.

The Order Apiales

Apiaceae - the Carrot Family
= Umbelliferae or the parsley family

Apiaceae

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