This collection consists of 26 plant sample sheets (not all containing plants) with descriptions that had been collected from the area surrounding the Texas A&M campus in Brazos Valley County. The samples were gathered from April 14 to May 28, 1890, by Eugene W. Carter.

In November 2003, M. D. Reed of the Texas A&M University Biology Department repaired and curated the herbarium's botany samples leaving the following note: This collection may have been used as a teaching aid in a Botany class, since E. W. Carter does not appear in student rolls from the period.
These are common plants of the Brazos Co. spring flora. The "analysis" on each sheet is correct and painstakingly thorough. The book used to identify the plants was probably one by Asa Gray not meant for Texas. But since there was no complete treatment for Texas in 1890, this is hardly a fault.