Bot. [mod.L. (Linnæus, 1730), f. Gr. σύν SYN- + γένεσις production, GENESIS, with ending as in Decandria, etc.: see -IA.] The nineteenth class in the Linnæan Sexual System, comprising plants having stamens coherent by the anthers, and flowers (florets) in close heads or capitula; corresponding to the Natural Order Compositæ.
Also an order in the classes from the 20th to the 23rd, characterized by similar cohesion of the stamens.
1753. Chambers, Cycl. Supp., s.v., The syngenesia expresses the same class of plants with the compound flowered plants of Ray, and others.
1771. Encycl. Brit., I. 648/2. Many flowers, particularly those of the syngenesia class.
1785. Martyn, Lett. Bot., ix. (1794), 94. If the filaments … are free and distinct, but the anthers are connected together, so as to form one body, then your plant will be found in the class syngenesia.
1797. Encycl. Brit. (ed. 3), XVI. 553/1. Ruscus,… Butcher’s Broom: A genus of the syngenesia order, belonging to the dioecia class.
1816. Encycl. Perth., V. 638/1. Corn Marigold … belonging to the syngenesia class of plants.
Hence Syngenese, a syngenesious plant; Syngenesian a. = next, a.
1836. Smart, Syngenese. Ibid. (1840), Syngenesian.
