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Rubiaceae famil yppt yvani


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Rubiaceae family or coffee family.

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Rubiaceae famil yppt yvani

  1. 1. Classification; Division; Angiosperms. Class; Dicots. Sub-class; Gamopetalae. Order; Rubiales. Family; Rubiaceae.
  2. 2.  Rubiaceae is a family of flowering plants, commonly known as the coffee, madder, or bedstraw family. It consists of terrestrial trees, shrubs, lianas, or herbs The family contains about 13,000 species in 611 genera, which makes it the fourth-largest angiosperm family. Rubiaceae has a cosmopolitan distribution
  3. 3. A wide variety of growth forms are present: shrubs are most common, but members of the family can also be trees, lianas or herbs. Some epiphytes are also present (e.g. Myrmecodia). Habit Leaves; The leaves are simple, undivided and entire; leaf blades are usually elliptic, with a cuneate base and an acute tip. The phyllotaxis is usually decussate; rarely whorled (e.g. Fadogia); or rarely alternate resulting from the suppression of one leaf at each node (e.g. Sabicea sthenula). Characteristic for Rubiaceae is the presence of stipules that are mostly fused to an interpetiolar structure on either side of the stem between the opposite leaves.
  4. 4. Leaves Herbaceous’, or leathery; petiolate to sessile; connate (often, via the stipules), or not connate; gland-dotted, or not gland-dotted; simple; epulvinate. Lamina entire; one-veined, or pinnately veined; cross-venulate. Leaves stipulate. Stipules interpetiolar (usually), or intrapetiolar; with colleters (typically). Lamina margins entire, or serrate.
  5. 5. Inflorescence; Flowers aggregated in ‘inflorescences’, or solitary (less often); in cymes, or in panicles, or in verticils, or in heads (rarely, e.g. Morindeae, Gardenieae). The ultimate inflorescence units cymose. Flowers small, or medium-sized; regular; mostly 4 merous, or 5 merous; cyclic; tetra cyclic, actinomorphic, epigynous, regular, complete, bisexual, di and heterochlamedious.
  6. 6. Ixora coccinia
  7. 7. Perianth with distinct calyx and corolla; Calyx when detectable 4, or 5; 1 whorled; polysepalous or gamosepalous ,when gamosepalous, entire, or lobulate, or blunt- lobed, or toothed; regular (mostly), or bilabiate (rarely), persistent, or not persistent; valvate aestivation. Epicalyx present (e.g. Fernelia, Flagenium), or absent. Corolla (3–)4, or 5, or 8–10; 1 whorled; gamopetalous; imbricate, or valvate, or contorted; tubular, regular, or bilabiate (rarely).
  8. 8. Androecium 4, or 5. adnate (to the corolla tube, or attached at its very base in Coprosma); free of one another. 1 whorled. Androecium exclusively of fertile stamens. Stamens 4, or 5; inserted near the base of the corolla tube, or midway down the corolla tube, or in the throat of the corolla tube; isomerous with the perianth; alternating with the corolla members. Anthers dehiscing via longitudinal slits, introrse;
  9. 9. Gynoecium 2(–9) carpelled. Carpels usually reduced in number relative to the perianth. The pistil 1 celled (rarely), or 2(–9) celled. Gynoecium syncarpous; inferior (,Ovary 2(–9) locular. Gynoecium when bilocular (i.e. usually), transverse. Epigynous disk often present. Gynoecium stylate. Styles 1 Stigmas wet type, or dry type
  10. 10. Coffea arabica
  11. 11. Coffea arabica
  12. 12. Ixora coccinea
  13. 13. Mussaenda philippica
  14. 14. Mussaenda erythrophylla
  15. 15. Gardenia tubifera