González V. V., Zini L. M., Ortega-Baes P., Ferrucci M. S., Gynoecium structure and pollen tube pathway in the cactus family with emphasis on tribe Trichocereeae (Cactaceae — Cactoideae), Botanical Journal of the Linnean Society, 2023, 202(2):166-180, doi: 10.1093/botlinnean/boac081
The study compares gynoecium structure and pollen tube growth pathways in 18 cactus species. The authors use histology and electron microscopy, with particular attention to Trichocereeae.