The author briefly describes some XVI-XVIII centurie’s manuscripts and printed medicinal works wrote in Transylvania. These describe pharmaceutical uses of medicinal plants as well. These work are focusing on János Kájoni’s Herbarium which were wrote in 1673, in that 244 herbs uses can be found. Will be presented the history of the remaining manuscript, the biographical data and multiple activities of Kájoni, as well as from the described herbs from Herbarium are as follows: Juniperus communis, Ocimum basilicum, Thymus serpyllum, Agrimonia eupatoria, Achillea millefolium, Verbena officinalis, Sambucus sp. and Punica granatum. These herbs were evaluating phytotherapeutically, phytochemically and ethnobotanically, according to our knowledge from Kájoni’s Herbarium indications. Finally, mentions János Kajoni memory to cary today.
Keywords: Kájoni Johannes, Herbarium, medicinal plants