Suppression of the androecium as a teratological occurrence has been most frequently noticed in the following plants, omitting members of those families whose floral construction is normally incomplete in the majority of instances, and exclusive also of cases of substitution. See also under Heterogamy. Ranunculus Ficaria! auricomus! bulbosus! Cruciferae, sp. pl. Violaceae, sp. pl. Honckenya peploides. Stellaria. Caryophyllaceae, sp. pl. Malpighiaceae, sp. pl. Tropaeolum majus! Fragaria vesca! Rubus, sp. Pyrus Malus. Agrimonia vulgaris. Rosaceae, sp. pl. Trifolium hybridum. repens. Umbelliferae, sp. pl. Onagraceae, sp. pl. Hippuris vulgaris. Callitriche vernalis. autumnalis. Lonicera Periclymenum. Erica Tetralix. Thymus Serpyllum. Calceolaria. Compositae, sp. pl. Chenopodiaceae, sp. pl. Stratiotes aloides. =Meiotaxy of the gynoecium.=--Complete suppression of the pistil is of more frequent occurrence than that of the stamens, hence more flowers become accidentally unisexual by suppression of the pistil than by deficiency of the stamens. In many _Umbelliferae_, e.g. _Torilis Anthriscus_, _Cicuta virosa_, the central flowers are often male, owing to the suppression of the pistil. In many double flowers, owing to the excessive multiplication of petaloid stamens, the pistil is suppressed, in which cases it often happens that the flower is depressed in the centre, as in some garden varieties of _Ranunculus_. Schlechtendal, in describing a flower of _Colchicum autumnale_, in which the perianth was virescent, says that, although the stamens were present, the pistil was absent. In proliferous flowers the pistil is often completely defective, its place being occupied by the adventitious bud or axis. As in other cases of like nature, suppression of the pistil is very frequently consequent on fusion of flowers or other changes. Thus Morren relates an instance of synanthy in the flowers of _Torenia scabra_, accompanied by resorption or disappearance of some parts and spiral torsion of others. The pistil was entirely absent in this instance.[484] M. Gaetano Licopoli places on record an instance where the petals and carpels of _Melianthus major_ were suppressed.[485] On the whole, the pistil seems less subject to changes of this character than the androecium. Suppression of the pistil has been most frequently recorded in flowers (normally bisexual) of-- Ranunculus! Aconitium! Delphinium! Paeonia. Caryophylleae! Umbelliferae. Trifolium repens. hybridum. Compositae, sp. pl. Datura. Torenia asiatica. Colchicum autumnale.