Rare reissue of the four dissertations, of Otto Pontén, Carolus Fred. Wall, Johannes Fredr. Widgren and Gustavus Wilh. Sjöberg, that make up the "Mantissa Altera", but with four new separate title-pages. Originally part of the 13 parts of "Novitiarum Florae Sueciae Mantissa" 1832-1835. Taxonomic dissertations on Swedish flora.
In very good condition and wholly untrimmed. Krok, Fries, 15b; Stafleu & Cowan 1873; not in Cat. Linnean Soc.