(BOTANICAL.) Müller and Kränzlin. Abbildungen der in Deutschland . . . vorkommenden Grundformen der Orchideen-Arten. 60 color lithographed plates. 8vo, publisher's 1/4 cloth and pictorial boards, extremities rubbed; scattered minor foxing; ex-library, with label on backstrip and scattered internal markings (plates unmarked). Berlin, 1904
