Magnoliaceae (Magnolia Family) dates as far back as Pangea [Pierre Magnol, botanist]
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| Magnoliaceae (Magnolia Family) dates as far back as Pangea
[Pierre Magnol, botanist] 12 Genera (2 on campus) 220 species I. Leaves A. Alternate B. Simple C. Stipulate - scars encircle twig II. Flowers A. Large, showy B. Perfect C. Numerous spirally arranged stamens and pistils III. Fruits A. Conelike aggregates of 1. Follicles (Magnolia) 2. Samaras (Liriodendron) IV. Economic Importance A. Veneer for cabinets & furniture B. Wood pulp for paper C. Ornamental V. Range A. E.USA -> C. America; West Indies -> E. Brazil; SE AsiaGeneric comparison I. Liriodendron (Yellow-poplar, Tuliptree) [Lily tree] A. Lobed leaves with truncate or notched apices B. Diaphragmed pith C. Fast growing, valuable timer tree D. L. tulipfera (OT,) [Tulip bearing]
B. Homogeneous or inconspicuously diaphragmed pith C. Scarlet seeds dangle on slender threads from follicles I. M. grandiflora (Southern; Evergreen Magnolia) [showy flower] A. Flowers with 6-12 large white tepals B. Leathery, evergreen leaves with reddish brown pubescence C. Buds & twigs with reddish brown pubescence
B. Deciduous to semi-evergreen glaucous and white pubescent leaves with distinct oder C. Buds & twigs sparse pubescence III M. macrophylla (Large-leaved Cucumber Tree) [large-leaved] A. Flowers with large white fragrant tepals B. Very large (30 - 100 cm long) deciduous leaves with auricled or cordate base. C. Pubescent buds/branches III. Species with Deciduous leaves, Tomentose buds, and Pubescent Leaves
[acuminate]
2. 15-25 cm long leaf blades 3. > 2 cm petioles
2. =>12.5 cm long leaf blades 3. => 8 cm long fruit
[starlike] 1. White flowers 2. < 12.5 cm long leaf blades 3. 5 cm long fruit |