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Understanding Lauraceae Family: Characteristics and Varieties

Learn about Lauraceae family members, including trees and shrubs, with alternate, aromatic leaves and distinct flower types. Explore Cucurbitaceae morphology, including flower structure, fruit types, and plants in Nepal.

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Understanding Lauraceae Family: Characteristics and Varieties

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  1. Lauraceae

  2. Trees, shrubs. • Deciduous or evergreen. • Often aromatic. • Leaves alternate, subopposite or clustered. • Terminal bud conspicuous and enclosed by prominent bud scales or not (perulate).

  3. Inflorescence Type I: umbellate or racemose and enclosed in bracts • Type II: paniculate-cymose with strictly opposite flowers • Type III: paniculate-cymose with alternate lateral flowers.

  4. Flowers bisexual or unisexual (then dioecious). • Tepals 6, in 2 whorls. • Stamens in whorls of 3, inner whorls with glands. • Anthers dehiscing by 2 or 4 valves. • Ovary superior. • Ovule 1. • Fruit a drupe, borne on more or less enlarged cupule of perianth remains.

  5. Cucurbitaceae

  6. Lagenaria 1 Luffa 1 Momordica 3 Mukia 1 Neoalsomitra 1 Sechium 1 Solena 1 Thladiantha 1 Tricosanthes 6 Zehneria 2 Biswarea 1 Citrullus 1 Coccinia 1 Cucumis 3 Cyclanthera 1 Diplocyclos 1 Edgaria 1 Gomphogyne 1 Gymnopetalum 1 Gynostemma 1 Herpetospermum 1 Cucurbitaceae in Nepal

  7. Cucurbitaceae morphology • Flowers unisexual, plants monoecious or dioecious. • Hypanthium present • Petals 5, connate • Stamens 5, or reduced to 3, variously connate or modified, usually appearing as 3. • Anthers with bent locules • Styles free or connate. • Ovary inferior, placentation parietal, carpels3. • Fruit dehiscent or indehiscent berry or capsule.

  8. Citrillus

  9. Coccinea

  10. Momordica

  11. Melastomataceae

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