If a tree dies, plant another in its place.

If you do not know the names of things, the knowledge of them is lost, too.

No one has been a greater botanist or zoologist. No one has written more books, more correctly, more methodically, from personal experience. No one has more completely changed a whole science and started a new epoch.

The plant kingdom covers the entire earth, offering our senses great pleasure and the delights of summer.

The species and the genus are always the work of nature [i.e. specially created]; the variety mostly that of circumstance; the class and the order are the work of nature and art.

If a tree dies, plant another in its place.

Natural bodies are divided into three kingdomes of nature: viz. the mineral, vegetable, and animal kingdoms. Minerals grow, Plants grow and live, Animals grow, live, and have feeling.