The biogeography of Peyote in South Texas / George R. Morgan.

The ethnobotany of sweet flag among North American Indians / George R. Morgan.

Peyote trade in South Texas / George R. Morgan and Omer C. Stewart.

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Morgan, George R.

Works from the collections

The biogeography of Peyote in South Texas / George R. Morgan.

The ethnobotany of sweet flag among North American Indians / George R. Morgan.

Peyote trade in South Texas / George R. Morgan and Omer C. Stewart.