Merremia
Merremia tuberosa
Merremia is a plant genus of the family of wind plants ( Convolvulaceae ). The 60 to 70 species occur in the tropics and subtropics. The genus is named after the German naturalist Blasius Merrem (1761 - 1824) named.
Description
Merremia are hairy or hairless climbing plants that grow mostly herbaceous. The leaves are entire, lobed or compound fiederig with three to seven separate sheets.
The flowers appear singly in the axils or in few - flowered cymes on long stalks. The inflorescences are accompanied by small bracts, these are linear or lanceolate. The sepals are formed almost the same length and elongated or elliptical. The crown is bell-shaped and colored in white, yellow or purple. Sometimes it is easy lobed. The stamens and the stamp are not beyond the crown. The stamens may be the same long or be slightly unequal in length. The anthers are usually rotated after popping up. The pollen grains are smooth. The ovary is mostly hairless, consists of two or three carpels with four to six ovules. The style is filiform, the stigma is globose or zweikugelig.
The fruit capsules are thin walled and surrounded by enlarging calyx. You jump on vierkammerig or irregular. They contain four to six seeds, rarely fewer or only one. The seeds are glabrous or hairy.
System
The genus is classified within the wind plants in the established policy of title Tribus Merremieae.
Selection of species:
- Merremia aegyptia
- Merremia cissoides
- Merremia dissecta
- Merremia quinquefolia
- Merremia tuberosa
- Merremia umbellata