what is floral formula explain with diagram
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Explanation:
History
Floral formulae were developed at the beginning of the 19th century.[2] The first authors using them were Cassel[3] (1820) and Martius[4] (1828). Grisebach[5] (1854) used them in his textbook to describe characteristics of floral families, stating numbers of different organs separated by commas and highlighting fusion. Sachs[6] (1873) used them together with floral diagrams, he noted their advantage of being composed of "ordinary typeface". Although Eichler widely used floral diagrams in his Blüthendiagramme,[7][8] he used floral formulae sparingly, mainly for families with simple flowers. Sattler's[9] Organogenesis of Flowers (1973) takes advantage of floral formulae and diagrams to describe the ontogeny of 50 plant species. Newer books containing formulae include Plant Systematics by Judd et al.[10] (2002) and Simpson[11] (2010). Prenner et al. devised an extension of the existing model to broaden the descriptive capability of the formula and argued that formulae should be included in formal taxonomic descriptions.[2] Ronse De Craene (2010)[1] partially utilized their way of writing the formulae in his book Floral Diagrams.
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