Risenga , Ida, University of the Witwatersrand, Johannesburg, School of Animal, Plants and Environmental sciences
Ritchey, Zak, Department of Botany, University of Hawaii
Ritchey, Zak, University of Hawai`i at Manoa
Ritesh, K. C., Botanical Survey of India, CGO Complex, Salt Lake City, Kolkata-700 064, India
Ritmaleni, Ritmaleni, Faculty of Pharmacy, Gadjah Mada University, Yogyakarta 55281, Indonesia
Ritonga, Muhammad Azli, Department of Biology, Faculty of Mathematics and Natural Sciences, Andalas University
Ritter, Mara Rejane
Ritter, Mara Rejane, Department of Botany, Graduate Program in Botany - Federal University of Rio Grande do Sul
Rivera, Luis Osvaldo, Instituto de Ecoregiones Andinas (INECOA)
Rivero, Tirzo
Rizal, Fahmi , Pendidikan Teknologi dan Kejuruan, Universitas Negeri Padang, Indonesia
Robena, Ignace
Robin, D.T. Rose, Banana Farmers Federation, Kuzhithurai, Kanniyakumari, South India
Robles-García, Daniel
Rocabado Imaña, Elizabeth, Instituto de Investigación de Antropología y Arqueologia UMSA
Rocha, João Miguel , University of Minho, Portugal
Rochdi , Atmane, Laboratory of Natural Resources and Sustainable Development, Faculty of Sciences, Ibn Tofail University, Kenitra, Morocco
Rochdi, Atmane, Laboratory of Natural Resources and Sustainable Development, Faculty of Sciences, Ibn Tofail University, Kenitra, Morocco
Rockwell, Cara
Rockwell, Cara A., Florida International University
Rodrigo-Villanueva, Maritza , Universidad Nacional de Trujillo
Rodrigues, Lúcia dos Santos, Universidade Federal Rural de Pernambuco (UFRPE)
Rodrigues Maciel, Maria Gracielle
Rodriguez, Cristhian N., Unidad de posgrado, facultad de farmacia y bioquímica, Universidad Nacional de Trujillo
Rodríguez Arévalo, Luis Angel

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