Nicolaus Joseph von Jacquin sends six plates from Florae Austriacae, sive plantarum selectarum. Some of them are commented.
On Laserpitium trilobum, Jacquin admits that he had always been sure of the name but that he is no longer so, since so many details differ. Also, Albrecht von Haller quotes Linnaeus but gives a picture of another species. Jacquin has begun to believe that he has found a new species.
Gentiana ciliata is still difficult. Oeder had described one variant, which Linnaeus had cited in Mantissa plantarum altera, 2nd ed. Now, Jacquin wants to know if the variant described in Systema naturae, 12th edition agrees with Georg Christian von Oeder’s or with Jacquin’s. If it agrees with Oeder’s, Jacquin will treat his as a new species.
Hedysarum alpinum had been identified by Linnaeus as Hedysarum obscurum.
Pyrus nivalis is an elegant little tree with fruits that become very sweet and tasty after frost, when they are decaying. Until then, they are extremely sour, more so than anything else.
Jacquin sends a twig of the tree Filao received from the island Borbonia. He got a similar twig from Kew Garden, tagged Casuarina Rumphii, but that attribution must be wrong. Jacquin asks Linnaeus for help.