Gilbert, Samuel 17th Century  

He was the son-in-law of John Rea. Gilbert wrote The Florists Vade-Mecum (1682). Subsequent editions were published in 1683, 1690, 1693, and 1702. This book went into many editions and apart from the astrological aspects was thoroughly practical. It has been called "one of the most charming of later seventeenth century gardening books" (Rohde, 1924). He listed 30 varieties of roses which were cultivated at that time in gardens.

Additional information about Samuel Gilbert may be found on the Internet. (Caution: Some links may not directly pertain to this person. The search engine did not take Professor Howlett's course.)