One of my favorite Edith Sherwood's plant ids is the Roman coriander (Nigella sativa) on fol. 29v. The seeds of the herb (black cumin) are found in tombs of the ancient Egypt (including King Tut's). According to Dioscorides the seeds mixed with vinegar are cure for crocodile and dog-bites. There is possibility that the root of the plant on the drawing represents crocodile skull - often present in medieval wunderkammer.