Ceropegia

Ceropegia is a genus of plants within the family Apocynaceae, native to Africa, southern Asia, and Australia. It was named by Carl Linnaeus, who first described this genus in his Genera plantarum, which appeared in 1737. Linnaeus referred to the description and picture of a plant in the Horti Malabarici as the plant for which the genus was created. In 1753 he named this species as Ceropegia candelabrum. Linnaeus did not explain the etymology but later explanations stated that the name Ceropegia was from the Greek word keropegion κηροπηγɩον. This means candelabrum in Latin, which has a broader range than the modern word - "a candlestick, a branched candlestick, a chandelier, candelabrum, or also lamp-stand, light-stand, sometimes of exquisite workmanship".

Appearance

'' The stems are vining or trailing in most species, though a few species from the Canary Islands have erect growth habits. Among some species, such as Ceropegia woodii, the nodes swell, and the roots similarly expand to form tubers beneath the soil surface. The leaves are simple and opposite, although they can be rudimentary or absent. Especially in certain succulent species, the leaves may also be thick and fleshy. The flowers have a tubular corolla with five petals most often fused at the tips, forming an umbrella-like canopy, a cage, or appendage-like antennae. Pollination is accomplished by flies, and species can be generalists by attracting multiple families, or extremely specialized. Ceropegia dolichophylla releases scents that attract kleptoparasitic flies by mimicking the pheromones released by predatory arthropods in distress. The flowers are often inflated and fused at several points, forming a cage. Flies become momentarily trapped inside, accomplishing pollination as they move about. ==Classification==

Classification

The genus Ceropegia belongs to the subfamily Asclepiadoideae (milkweeds) within the family Apocynaceae. Species of this genus bear similarities to the carrion flowers or stapelias. There are at least 420 known species. More are being discovered and described regularly. They are distributed throughout most of sub-Saharan Africa and Madagascar to the Arabian Peninsula, southeast Asia, the Canary Islands, the tropical Pacific, and Australia. A generic complex, with many interesting taxonomic problems at both generic and specific level, is formed by three genera: Ceropegia, Brachystelma and Riocreuxia. ==Selected species==

Selected species

Over 450 species are accepted. Selected species include: ==Gallery==

Gallery

File:Ceropegia stapeliiformis serpentina 02 ies.jpg|Ceropegia stapeliiformis File:Ceropegia linearis.jpg|Ceropegia linearis File:Ceropegia rhynchantha Bild0876.jpg|Ceropegia rhynchantha File:Ceropegia fusca.jpg|Ceropegia fusca File:Ceropegia radicans radicans Schltr. (AM AK289461-2).jpg|Ceropegia radicans ssp. radicans ==References==

Source: Wikipedia ↗

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