HISTOLOGICAL STUDIES ON THE ROOTS OF TWELVE SPECIES OF SECT. MICRODISCUS AND SECT.ADENOPHORA OF THE GENUS ADENOPHORA

This paper reports the root structures of Adenophora lamarkii Fisch, A.hunanensis Nannf., A.hunanensis Nannf. subsp. huadungensis Hong, A.trachelioides Maxim., A.trachelioides Maxim. subsp. giangsuensis Hong, A.remotiflora (Sieb. et Zucc.) Miq. derived from Sect. Microdiscus of the Genus Adenophora, and A.stenanthina (Ledeb.) Kitagawa, A.stenanthina (Ledeb.) Kitagawa subsp. xifengensis P.F.Tu et Y.S.Zhou, A.liliifolioides Pax et Hoffm., A.capillaris Fisch., A.tetraphylla Fisch., A.triphylla (Thunb.) A.DC. derived from Sect. Adenophora of the Genus Adenophora. Based on the histological studies of 23 species, 5 subspecies and 2 varieties of the Genus Adenophora, a Key of histological characters is given.