Simpson, Charles E., Professor Emeritus. Texas Agric. Exp. Stn. Texas A&M Univ. Stephenville, TX 76401. USA, United States
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Bonplandia Vol. 14 No. 1-2 (2005) - Original papers
New species of Arachís (Leguminosae) from Brazil, Paraguay and Bolivia
Abstract PDF (Español (España))