LINNAEUS, CARL. [Collection of works]. 15 works in 29 volumes: Bibliotheca botanica. Amsterdam: 1736. [Bound with:] Fundamenta Botanica. Amsterdam: 1736. 2 works in one vol., 8vo, 155 x 94mm., contemporary vellum, clasps, lightly browned or spotted contents. FIRST EDITIONS. The two works were issued togther, but are treated as separate works bibliographically. They were published in September 1735 and thus precede the Systema naturae by two months. Together they contain the essence of Linnaeus' thoughts on systematic botany. Soulsby 250 [253]; Stafleu & Cowan TL2 4711 [4710]. Peter G.Krafft; Robert de Belder -- Critica botanica in quam nomina plantarum generica, specifica & variantia examini subjiciuntur... Accedit Johannis Browallii De necessitate historiae naturalis discursus. Leiden: 1737. 2 parts in one volume, 8vo, 200 x 122mm., contemporary mottled calf, spine gilt, head and foot of spine chipped, small splits to joints. FIRST EDITION. The foundation of Linnaeus' generic reform, based on the Fundamenta aphorisms 210-314. Soulsby 276; Stafleu & Cowan TL2 4718. Philippe de Vilmorin, bookplate; Robert de Belder -- Des Ritters Carl von Linne... Vollstandiges Pflanzensystem. Nuremberg: 1777-1788. 14 vols. in 15, 8vo, 195 x 117mm., vols.I-XII uniform contemporary half calf, spines gilt; vols.XIII (parts 1 and 2) and XIV bound to match, the first two vols with slight splits to joints, small chips to most spines. Engraved portrait and 104 folding engraved plates. The co-editors of this work are Gottlieb Christmann (vols.I-VII) and Goerg Panzer (vols.VIII-XIV). Soulsby 577; Stafleu & Cowan TL2 1130. Gynnasium library, Wolfenbüttel, cancelled stamps; Robert de Belder -- Flora Suecica. Stockholm: 1745. 8vo, 204 x 120mm., contemporary half calf, scuffed, contents spotted. FIRST EDITION. One folding engraved plate. Soulsby 407; Stafleu & Cowan TL2 4731. Barthélemy Charles Joseph Dumortier (1797-1878), Belgian politician and botanist, inscription, dated 1820; Robert de Belder -- Flora Zeylanica. Stockholm: 1747. 8vo., 200 x 117mm., contemporary marbled sheep, small wormholes in spine, text spotted. FIRST EDITION. 4 folding engraved plates. Soulsby 420; Stafleu & Cowan TL2 4740. Robert de Belder -- Frutetum Suecicum. Uppsala: 1758. 4to, 202 x 163mm., modern cloth, contents spotted. FIRST EDITION. Robert de Belder -- Genera plantarum... editio secunda aucta & emmendata. Leiden: 1742. 8vo, 200 x 122mm., contemporary speckled calf, spine scuffed and chipped, spotted, wormtrack through lower blank margin. One folding table, one folding engraved plate. Soulsby 297; Stafleu & Cowan TL2 4714. Robert de Belder -- Genera plantarum... editio sexta. Stockholm: 1764. 8vo, 210 x 124mm., contemporary calf, spine gilt. Sixth edition but the fourth and last original edition, listing 1239 genera. A fine copy. Soulsby 305; Stafleu & Cowan TL2 4823. Philippe de Vilmorin (bookplate); Robert de Belder -- And 6 other works, by or on Linnaeus, 7 vols. (29)