FABACEAE Bean or Pea Family Class Magnoliopsida dicot

FABACEAE: Bean or Pea Family • Class: Magnoliopsida (dicot) • Sub-Class: Rosidae • Order: Fabales • Family: Fabaceae • Subfamily: 1. Papilionoideae 2. Caesalpinoideae 3. Mimosoideae

v 400 genera v 10, 000 species v. Found all over the world, concentrated in warm temperate regions in the Northern and Southern Hemisphere (3 rd largest family of flowering plants) http: //pharm 1. pharmazie. uni-greifswald. de/gallery/gal-faba. htm

Habit: Trees, Shrubs, Herbs Self supporting, or epiphytic, or climbing Halophytic, or mesophytic, or xerophytic What’s that mean?

FLOWER

Flowers: Bisexual, zygomorphic, perigynous (perianth and stamens united by bases) Floral Formula: CA 5 COZ 5 A 10 or 9+1 G 1 Floral Diagram: Bonus Point

FABACEAE FLORAL DIAGRAM

Calyx: 5 sepals united below tube Corolla: 5 petals (1 standard, 2 wing, 2 keel) http: //www. csdl. tamu. edu ASTRAGALUS

Standard or Banner Keel Wing http: //www. botany. hawaii. edu/faculty/carr/images/tip_2666. jpg

Gynoecium: one simple pistil (1 carpel, 1 locule), ovary superior, marginal placentation

PERIGYNOUS http: //www. botany. hawaii. edu/faculty/webb/BOT 410/Angiosperm/Adnat ion. htm

HYPOGENOUS

http: //www. botany. h awaii. edu/ EPIGYNOUS

Androecium: 10 stamens, monadelphous (A 10) or diadelphous (A 9+1) Wisteria sinensis (9+1) http: //www. csdl. tamu. edu/FLORA/

INFLORESCENCE

Racemes Indeterminate Growth and Pedicellate Erythrina speciosa

Spikes Indeterminate/Sessile

Heads Sessile Anthyllis vulneraria

LEAVES

Compound (pinnate or palmate) rarely simple, alternate PALMATE ODD-BIPINNATE Gymnocladus dioicus http: //www. forestry. auburn. edu/ Trifolium repens http: //www. borealforest. org/world/herbs_shrubs/whi te_clover. htm

Stipules may be modified into tendrils Lathyrus Odoratus Trifolium campestre http: //www. bioimages. org. uk/HTML/R 151135. HTM www. botgard. ucla. edu/. . . /typesofshoots/ tendril/b 0371 tx. html

PULVINUS (enlarged petiole base) http: //www. csdl. tamu. edu/FLORA/

Associated with leaf movement-in response to touch or heat Mimosa – “Sensitive Plant”

Roots: nodules and nitrogen fixing bacteria Rhizobia on Root Hair http: //www. nmsu. edu/~molbio/plant/peas. html

Fruit: Simple, Capsule: dehiscent legume or a loment LEGUME LOMENT http: //www. csdl. tamu. edu/FLORA/

Seed: May have food reserves in the cotyledons LOMENT Erythrina herbacea LEGUME http: //www. csdl. tamu. edu/FLORA/i

SEEDS CONT… Varying shape and size

Composed of embryonic axis and two cotyledons The axis has embryonic root (radicle), the hypocotyl, and the first true leaves (plumule)

Germination is Epigeal or Hypogeal Epigeal- Cotyledons push above soil surface Hypogeal- Cotyledons remain beneath the soil surface

Genus Ceratonia Medicago Astragalus Arachis Lupinus Phaseolus Glycine Cicer Pisum Lens Lathyrus Clitoria Common Name Carob Alfalfa Milk Vetch Peanut Lupines Common Bean Soybean Chickpea Garden Pea Lentil Sweet Pea Butterfly Pea

Ceratonia. Coffee and Chocolate http: //www. floraguide. es/arboles/Ceratoniasiliqua. htm

Medicago – Livestock Feed http: //www. csdl. tamu. edu/FLORA/

Astragalus Aphrodisiac http: //www. csdl. tamu. edu/FLORA/

Arachis – WHAT A GOOBER! http: //www. hort. purdue. edu/

Lupinus - poisonous http: //www. csdl. tamu. edu/FLORA/

Phaseolus – Wash your face with Beans?

Glycine – Watch out for the oligosaccharides!

Cicer - Protein http: //www. funet. fi/pub/sci/bio/life/warp/album-Kosterin-8. html

Pisum – Anti-sex horomonic effects http: //www. csdl. tamu. edu/FLORA/

Lens – Better than a cold shower!

Lathyrus – Oh Sweet Pea! http: //www. csdl. tamu. edu/FLORA/

Clitoria – May Promote Nausea and Vomiting http: //pharm 1. pharmazie. uni-greifswald. de/gallery/gal-faba. htm

References http: //www. botany. hawaii. edu/ http: //www. csdl. tamu. edu/FLORA/ http: //www. wisc. edu/ http: //biodiversity. uno. edu/delta/ http: //www. hort. purdue. edu/ http: //www. funet. fi/pub/sci/bio/life/warp/album-Kosterin-8. html http: //www. floraguide. es/arboles/Ceratoniasiliqua. htm http: //pharm 1. pharmazie. uni-greifswald. de/gallery/gal-faba. htm http: //www. forestry. auburn. edu/ www. botgard. ucla. edu/. . . /typesofshoots/ tendril/b 0371 tx. html http: //gened. emc. maricopa. edu/bio 181/BIOBK/Bio. Book. PLANTA NAT. html#General%20 Plant%20 Organization