Dorstenia
Sp. Pl. 1: 121. 175.
Gen. Pl. ed. 5, 56. 1754.
Taxon | Illustrator ⠉ | |
---|---|---|
Dorstenia contrajerva Brosimum alicastrum Maclura pomifera | John Myers John Myers John Myers |
Herbs, perennial, rhizomatous; stems short, fleshy, aerial stems not evident; sap milky. Leaves alternate; stipules persistent, free. Leaf-blade ovate to orbiculate, margins entire or pinnately lobed; venation palmate near base of blade, otherwise pinnate. Inflorescences axillary, flowers embedded in long-pedunculate, flat receptacle. Flowers: staminate and pistillate on same plant. Staminate flowers: calyx minute, 2-3-lobed; stamens 1-3, inflexed in bud. Pistillate flowers: calyx tubular, 4-lobed; ovary inferior, embedded in receptacle, 1-locular; style 2-branched. Syncarps disc or cupshaped; drupes embedded in enlarged, fleshy, common receptacle. Seeds explosively expelled.
Discussion
Species ca. 170 (1 in the flora).
Selected References
None.