Flora: it deals with plants and provides excat information of their habitat.
Manuals:they are useful in providing information of species found and contains name of species found in area .
Monograph: it gives information about one taxon such as family.
Catalogue: it is simply listing of all the species organized in some way .They are usually in alphabetical order.
						

							
As nouns the difference between manual and monograph
is that manualis a handbook while monographis a scholarly book or a treatise on a single subject or a group of related subjects, usually written by one person.
As an adjective manual
is performed with the hands (of an activity).
As a verb monograph is
to write a monograph on (a subject).
MANUAL=PROVIDING INFORMATION FOR "IDENTIFICATION OF NAMES OF SPECIES" FOUND IN AN AREA.
MONOGRAPH= CONTAION INFORMATION ON ANY ONE TAXON.
FLORA= IT CONTAIN THE ACTUAL ACCOUNT HABITAT AND DISTRIBUTION OF PLANT OF GIVEN AREA.
CATALOGUES=Catalogue a list of names, titles, or articles arranged systematically