Stirpium rariorum in Imperio Rutheno sponte provenientium icones et descriptiones.
Two important and generously illustrated botanical works produced by respected Linnaean correspondents at the Imperial Academy of Sciences at St. Petersburg. Amman’s Stirpium rariorum contains useful descriptions of 285 plants from Eastern Europe and “Ruthenia” (now Ukraine), enhanced with 35 clear engravings. According to Hunt, Amman “made a notable contribution..... More