[MONOGRAPHS]. BOOTT, FRANCIS. Illustrations of the genus Carex. London: 1858-1867. 4 vols., folio, original cloth, spines worn, two covers detached, occasional light spotting. 602 engraved plates. Nissen BBI 210. Presentation copy from the author or his wife to the American mycologist Moses Ashley Curtis; Massachusetts Horticultural Society, bookplates, stamps, (sale: Sothebys', 1 October 1980 lot 105); Robert de Belder -- ENGLER, A. Monographien Afrikanischer Planzen-familien und -gattungen. Leipzig: 1898-1904. 8 parts, folio, contemporary cloth-backed boards. Author's presentation copy to John Briquet, inscribed on three titles, booklabel; Conservatoire botanique, Geneva, cancelled stamps; KKM/HSNY, bookplate -- LAVALLÉE, A. Les clématis à grandes fleurs. Paris: 1884. Folio, original cloth, lightly soiled, light spotting to contents. 24 lithographed plates. Author's presentation copy to Monsieur d'Abbadie, inscription: KKM/HSNY, bookplate -- Bossier, E. Icones Euphorbiorum. Geneva: 1866. Folio, original wrappers, torn, some light creasing, some light spotting to plates. Numerous lithographed plates. Stafleu & Cowan TL2 610 -- And a large collection of works, the majority 19th century plant monographs (approximately 250 volumes).