Aliscioni S. S., Gotelli M., Galati B., Zarlavsky G., Torretta J. P., Colleters, osmophores, and nectaries in the species Ceropegia lenewtonii: a sapromyiophilous stapeliad (Asclepiadoideae, Apocynaceae), Protoplasma, 2024, 261(1):3-13, doi: 10.1007/s00709-023-01872-4
A study of the structure and histochemistry of floral glands, including colleters, osmophores and nectaries. The material was described as Ceropegia lenewtonii and equated with Huernia keniensis. In POWO, C. lenewtonii is a synonym of the distinct H. lenewtonii. Attributing the results to a species requires rechecking the material's identification.