Bulbous irises Foster, M. Sir, (Michael), 1836-1907 creator Royal Horticultural Society (Great Britain) contributor text book London Royal Horticultural Society [1892?] 1892
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ENG At head of title: Royal Horticultural Society. Includes index. Irises (Plants) https://www.biodiversitylibrary.org/bibliography/20182 15156351 10.5962/bhl.title.20182 SDB