Walton Carlyle Gregory

Arachis pintoi, the Pinto peanut, is a forage plant native to Cerrado vegetation in Brazil. It is native to the valleys of the upper São Francisco and the Jequitinhonha rivers of Minas Gerais. It has been named after the Brazilian botanist Geraldo Pinto, who first collected the plant at the locality of Boca do Córrego, município de Belmonte (State of Bahia) in 1954 and suggested its potential as a forage. The species has been first described by A. Krapovickas and W. Gregory in 1994. This wild perennial relative of the groundnut or peanut, has been of increasing importance to pasture

Arachis duranensis (syn. Arachis argentinensis Speg., Arachis spegazzinii M.Gregory & W.Gregory) is a herb found in South America, specially in North Argentina, Bolivia, and Paraguay. This plant is cited as gene sources for research in plant biology of peanut (Arachis hypogaea).

Arachis rigonii is a species of plant in the family Fabaceae. The species is native to Bolivia. The species was assessed for the IUCN Red List of Threatened Species as extinct in the wild.

Arachis ipaensis is a herb in the Faboideae subfamily. It is endemic to Bolivia. This plant is cited as gene sources for research in plant biology of peanut (Arachis hypogaea). Its genome has been sequenced. Arachis ipaensis is only known from its type locality, Ipa near Villamontes, where it was collected in 1977. It was growing on top of the cliffs of a gorge among bromeliads. Surveys in 1994–2013 failed to find any specimens. Nonetheless, it is conserved in several international gene banks.

Arachis correntina (syn. Arachis villosa Benth. var. correntina Burkart) is a herb native to Argentina and Paraguay. This plant is cited as gene sources for research in plant biology of peanut (Arachis hypogaea).

Arachis cardenasii is a herb in the Fabaceae family. This plant is cited as gene sources for research in plant biology of peanut (Arachis hypogaea); for example, Cercospora leaf spot resistance.

Arachis batizocoi is a herb native to Bolivia and Paraguay. This plant is cited as gene sources for research in plant biology of peanut (Arachis hypogaea). Arachis batizocoi maintains a divergent genome as well as high fertility that facilitates the upbringing of new and beneficial alleles within peanut crops. Such high crossability has increased the frequency of several advantageous alleles that have improved plant life and agricultural output. Among these are boosted resistance against groundnut yield-limiting diseases such as late leaf spot (LLS) and groundnut rosette disease (GRD), larger

Arachis archeri (Portuguese common name: amendoim do campo limpo) is a herb native to Mato Grosso vegetation in Brazil. This plant is cited as gene sources for research in plant biology of peanut (Arachis hypogaea).

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