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
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