au.\*:("COWAN RS")
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NEW TAXA OF LEGUMINOSAE-CAESALPINIOIDEAE FROM BAHIA, BRAZILCOWAN RS.1981; BRITTONIA; ISSN 0007-196X; USA; DA. 1981; VOL. 33; NO 1; PP. 9-14; BIBL. 3 REF.Article
A TAXONOMIC REVISION OF THE GENUS HETEROSTEMON (LEGUMINOSAE-CAESALPINIOIDEAE)COWAN RS.1976; PROC. KKL. NEDERL. AKAD. WETENSCH., C; NETHERL.; DA. 1976; VOL. 79; NO 1; PP. 42-60; H.T. 4; BIBL. 2REF.Article
RESEARCH AND PUBLICATION. MINERAL SCIENCES.COWAN RS.1967; U.S.NATION.MUS.ANNU.REP; USA; 1967, VOL. 1966, P. 112 A 114Miscellaneous
BRACHYCYLIX, A NEW GENUS OF TROPICAL LEGUMINOSAE (CAESALPINIOIDEAE)COWAN RS.1975; PROC. KKL. NEDERL. AKAD. WETENSCH., C; NETHERL.; DA. 1975; VOL. 78; NO 5; PP. 464-467Article