[BOTANICAL INDICES]. JACKSON, B.D. and others, compilers. Index Kewensis. Oxford: 1895-1974. 17 vols. (?only, including supplements I-XV), large 4to, 310 x 238mm., original half morocco or cloth, the two final vols. with dust-jackets, most spines chipped. FIRST EDITION. Horticultural Society of New York, bookplate; Robert de Belder -- GORTER, D. DE. Flora Belgica. Utrecht: 1767. 8vo, 196 x 120 mm., contemporary speckled calf -- And 25 other works, in 27 vols., 18th-19th century, plant indices, the majority in Latin. (44)