Dorstenia

Named after an early German botanist, Theodor Dorsten. (Urticacae or Moraceae). Between 40 and 50 tropical herbs, remarkable for the dilated receptacle in which the unisexual flowers are borne. The plants are not in the American trade, but they are often grown in
botanical establishments to illustrate morphology. The fig is a hollow receptacle; the Dorstenia bears a flattened or cup-like receptacle, and is an intermediate stage between the fig and other plants. One of the common species is D. Contrajérva, which is native to tropical America. Both staminate and pistillate flowers are without perianth; stamens 1 or 2; ovary 1-loculed; stigma 2-lobed. Dorstenias are easily grown in warm, shady glasshouses.