ON THE CONTENTS OF SCHUMANNIOPHYTON PROBLEMATICUM (RUBIACEAE)SCHLITTLER E; SPITALER U.1978; TETRAHEDRON LETTERS; GBR; DA. 1978; NO 32; PP. 2911-2914; BIBL. 7 REF.Article

THE ISOLATION OF COLUMBIN AND PALMATINE FROM SPIROSPERMUM PENDULIFLORUMSCHLITTLER E; WEBER N.1972; LLOYDIA; E.U.; DA. 1972; VOL. 35; NO 2; PP. 181-182; BIBL. 11 REF.Serial Issue

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