Volney Rattan (May 23, 1840-March 4, 1915) was an American botanist (collector and teacher) who spent most of his professional life in US state of California.
He botanized in remote and wild areas of Northwest California, finding many species new to science.
He corresponded with eminent botanists Asa Gray and George Engelmann, and sent specimens to them.
He was an inspiring teacher, and wrote books to help those with botanical interests to learn principles of taxonomy, and to help them identify native plants of California.
Author: Unknown Source: Screenshot from a copy of Rattan's 1879 book held by the University of California (shown online at https://www.biodiversitylibrary.org/item/66275#page/6/mode/1up). The photo, obviously taken late in life, was apparently pasted on a blank page preceding the title page. Rattan was born in 1840 and died 1915. I did some minor photo editing (contrast, adjusted tilt). License: CC-PD-Mark PD-old-70-expired