Research, Society and Development, v. 10, n. 1, e27010111567, 2021 (CC BY 4.0) | ISSN 2525-3409 | DOI: http://dx.doi.org/10.33448/rsd-v10i1.11567 Reproductive biology of Kalanchoe laetivirens (Crassulaceae) in the edaphoclimatic conditions of Santa Catarina, Brazil Biologia reprodutiva de Kalanchoe laetivirens (Crassulaceae) nas condições edafoclimáticas de Santa Catarina, Brasil Biología reproductiva de Kalanchoe laetivirens (Crassulaceae) en las condiciones edafoclimáticas de Santa Catarina, Brasil Received: 12/30/2020 | Reviewed: 01/08/2021 | Accept: 01/11/2021 | Published: 01/13/2021 Leonardo Norberto de Sousa Filho ORCID: https://orcid.org/0000-0002-6673-8214 Universidade Federal de Santa Catarina, Brazil E-mail:
[email protected] Jean Bressan Albarello ORCID: https://orcid.org/0000-0001-8840-1893 Universidade Federal de Santa Catarina, Brazil E-mail:
[email protected] Mayara Martins Cardozo ORCID: https://orcid.org/0000-0001-8506-2785 Universidade Federal de Santa Catarina, Brazil E-mail:
[email protected] Márcia Regina Faita ORCID: https://orcid.org/0000-0003-1664-134X Universidade Federal de Santa Catarina, Brazil E-mail:
[email protected] Cristina Magalhães Ribas dos Santos ORCID: https://orcid.org/0000-0002-9118-6730 Universidade Federal de Santa Catarina, Brazil E-mail:
[email protected] Abstract Crassulaceae of the Kalanchoe laetivirens species have ornamental potential, but are poorly studied, especially their reproductive biology and trophic resources made available to visitors. The aim of this study, therefore, was to characterize the reproductive system of K. laetivirens through analyses of floral morphology, trophic resources and floral visitors. Floral structures, pollen / egg ratio, in vitro pollen germination, pollen grain structure in scanning microscopy and the availability of trophic resources by the evaluation of potential and instant nectar were described.