Gemmæ arborum, quas, ex cons. experientiss. et nobiliss. Facult. Med. in Reg. Acad. Upsaliensi, sub præsidio ... Dn. Doct. Caroli Linnæi ... speciminis academici loco naturæ curiosis examinandas sistit alumnus regius, Petrus Löfling, Medelpadus. In audit. Carol. Major. ad diem 18. Novemb. anni 1749 von Linné, Carl