Randia aculeata, [142]
dumetorum, [54], [142]
longispina, [142]
stipulosa, [142]
Raphanus sativus, [30]
Rhamnaceæ, [81]
Rhamnus Carolinianus, [81]
Jujuba, [81]
Wightii, [82]
Rhinacanthus communis, [189]
Rice, [242]
Ricinus communis, [222]
microcarpus, [222]
Subpurpurascens, [223]
viridis, [223]
Robinia mitis, [95]
Romero, [197]
Rosas-Caballero, [116]