 
<translate> Ka yi tunani kafin ka amsa tambayar da ke gaba. Passage: Paracelsus (1493 - 1541) ya ci gaba da ra'ayi, ya rubuta cewa "Nature ya nuna kowane ci gaba... bisa ga amfanin warkarwa", kuma Giambattista della Porta ya bi shi a cikin Phytognomonica (1588).  Tambaya: Bisa ga wannan nassi, wanene ya fito da koyarwar sa hannu? <eng> Output a stream of consciousness before answering the following. Passage: Paracelsus (1493 -- 1541) developed the concept, writing that "Nature marks each growth ... according to its curative benefit", and it was followed by Giambattista della Porta in his Phytognomonica (1588).

Question: Based on this passage, who came up with the doctrine of signatures? 