Wild plants and seeds of L. divaricata Cav. were collected in Santa
María de Punilla, Córdoba, Argentina. A voucher specimen has been
deposited in the International Herbarium of the National University
of Río Cuarto, Argentina, with the registration number RIOC 501.
L. divaricata seeds were surface-sterilized by immersion in 3%
(w/v) sodium hypochlorite solution for 15 min. Subsequently, the
seeds were washed with sterile distilled H2O, germinated on halfstrength
MS medium without plant growth regulators at pH 5.8 and
solidified with 0.8% (w/v) plant agar.
Leaf explants (50 explants) from