The following books are here at CMU and may be useful as you:
A Dictionary of Plant Sciences
The A to Z of Plant Names by 
If the CMU Library does not have what you need, the InterLibrary Loan (ILL) Department obtains articles, borrows books, music, movies, or documentaries.
To place a new request, check on the status of an existing request, or retrieve your article you'll need to go through ILLIAD, our InterLibrary Loan system. The first time you use ILLIAD, you'll need to make an account.
When searching in the databases, check the options below each item. Many will allow you to place an ILL request:
Click "Order from ILL", register for the ILL service using your MavZone credentials (if you haven't already) and the article you need to borrow will appear in the form.