This loss led him to shift his focus from botanical studies to forestry.

A hundred years after his death his approach seems more relevant to botanical studies than it has ever been.

James was the first to collect this genus for botanical study.

His most significant and lasting contributions were in the botanical study of cultivated plants.

They helped him in his botanical and naturalistic studies.

He also made some botanical studies, notably of cinchona and rubber trees.

A botanical study performed in 1991 found significant damage to the wildflower meadows.

He abandoned this idea in favour of medical and botanical studies.

From 1835 to 1844 he performed botanical studies on several expeditions within the United States.

"This equipment appears to be designed for botanical studies."