Ceropegia Species, Piaranthus

UPDATE--as of June, 2018, this plant's accepted name is
Ceropegia cornuta


According to The Encyclopedia of ...Read MoreSucculents, http://www.llifle.com/Encyclopedia/SUCCULENTS/Family/Asclepi...

The following copied from The Encyclopedia of Succulents
"The accepted Scientific Name: Piaranthus cornutus N.E.Br.
Accepted name in llifle Database:
Piaranthus cornutus N.E.Br.
Fl. Cap. (Harvey) 4: I. 1018 (1909)
Synonymy: 7
Piaranthus cornutus N.E.Br.
Piaranthus decorus var. cornutus (N.E.Br.) Meve
Piaranthus cornutus var. grandis N.E.Br.
Piaranthus nebrownii Dinter
Piaranthus pulcher var. nebrownii (Dinter) A.C.White & B.Sloane
Piaranthus pallidus C.A.Lückh.
Piaranthus pulcher N.E.Br.
Accepted name in llifle Database:
Piaranthus cornutus var. mennellii (C.A.Lückh.) Plowes
Bradleya 32: 134. 2014
Synonymy: 2
Piaranthus cornutus var. mennellii (C.A.Lückh.) Plowes
Piaranthus mennellii C.A.Lückh.
Accepted name in llifle Database:
Piaranthus cornutus var. ruschii (Nel) Bruyns
Stapeliads S. Africa Madagascar 2: 365. 2005
Synonymy: 2
Piaranthus cornutus var. ruschii (Nel) Bruyns
Piaranthus ruschii Nel"