Stigma (botany) Stigma (botany) The stigma (plural: stigmata) is the receptive tip of a carpel, or of several fused carpels, in the gynoecium of a flower. The stigma, together with the style and ovary comprises the pistil, which in turn is part of the gynoecium or female reproductive organ of a plant. The stigma forms the distal portion of the style or stylodia. The stigma is composed of , the cells which are receptive to pollen. These may be restricted to the apex of the style or, especially in wind pollinated species, cover a wide surface. The stigma receives pollen and it
Letters on the Elements of Botany directed at readers with a plant in their hand. Letters on the Elements of Botany Letters on the Elements of Botany () is a work comprising a series of letters written by Jean-Jacques Rousseau on the subject of botany. They were addressed to Mme Delessert in Lyon with the objective of helping her daughters learn botany. They were subsequently translated into English by Thomas Martyn, a professor of botany at Cambridge University, who added notes and corrections to the text. Martyn's translation was originally published in 1785. The letters elucidate the structure of plants and give their order in the