Calvo, J. & A. Granda (2022). Acerca de la identidad taxonómica cinco especies Senecio (Compositae) descritas por Candolle sobre base material recolectado Haenke durante Expedición Malaspina. Candollea 77: 145–158. En inglés, resúmenes en inglés y español. Las recolecciones realizadas el botánico bohemio Thaddeus América Malaspina (1789–1794) sirvieron a Augustin-Pyramus para describir numerosa...

three extracts of pulicaria dysenterica were examined for antibacterial activity using the agar disk-diffusion method against six bacterial strains. some of these extracts were found to be active against some bacterial strains. the methanolic extract exhibited a superior level of antibacterial activity. all of the extracts were active against vibrio chlorea.

The duration of phases of the cell cycle are measured in five species and one hybrid of the genus Crepis (Compositae), after pulse labeling with tritiated thymidine. The results indicate significant variations in the duration of post-synthetic interphase (G(2)), which affords a possible explanation for the abnormal chromosome morphology first described in Crepis hybrids as neutral amphiplasty.