肉珊瑚屬

莖：莖肉質，基部木質；小枝下垂，綠色。概況：蔓生或纏繞藤本。

葉：葉退化成小鱗片，早落。

花：聚傘花序傘狀，頂生或腋外生；無花序梗。花萼5深裂，內面基部腺體有或無；花冠輻狀或近輻狀，5深裂，裂片向右覆蓋；副花冠2輪，外輪環狀或杯狀，膜質，具5稜，頂端平截或淺裂，內輪具5裂片，肉質，基部腫大，內面具2龍骨凸起；雄蕊5，花絲合生成短筒，花葯附屬物膜質；每花粉器具2花粉塊，花粉塊蠟質，下垂，花粉塊柄細長；花柱短，柱頭短圓錐狀或長圓狀紡錘形。

果：朞蔞果披針狀圓柱形，果皮平滑。種子頂端具白色絹毛。 ^[1] 

肉珊瑚.. ^[2] 

世界：10種；中國：1種 ^[3] 

約10種，分佈於亞洲熱帶和亞熱帶地區和非洲。我國產1種，產於廣東。 ^[3] 

Sarcostemma viminale（L.）R. Br. ^[3] 

Lianas, trailing or twining, rarely ± erect, succulent, base woody. Leaves reduced to minute scales, soon lost. Cymes umbel-like, sessile, terminal or extra-axillary. Calyx with or without 5 basal glands. Corolla rotate or nearly so, deeply lobed; lobes overlapping to right. Corona double: outer corona inserted at junction of corolla tube and gynostegium, ringlike or cupular, membranous, 5-angled, truncate or shallowly lobed; inner corona lobes 5, inserted at base of gynostegium, fleshy, basally dilated, 2-keeled inside. Anther appendages membranous; pollinia 2 per pollinarium, waxy, pendulous, caudicle slender. Stigma head short conical or oblong-fusiform. Follicles thick, smooth.

FOC 第16卷 ^[1] 

肉珊瑚Sarcostemmaacidum (Roxb.) Voigt

R. Br. in Mem. Wern. Soc. 1: 50. 1810. ——Sarcolemma Griseb. ex Lorentz, Veget. Prov. Entre-Rios 80. 1878. ^[1]