EXPLANATORY NOTE. 



The Natural Orders and the Genera in this Catalogue 

 are each numbered consecutively throughout, the sequence 

 followed being that of the " Genera Plantarum" by Bentham 

 and Hooker. The Species are generally named in accordance 

 with the " Flora of British India/' so far as that work has 

 yet been published (to end of Genus 594, p. 67). 



Names of species or varieties printed in small capitals 

 are believed to be endemic (i. e., found in Ceylon only, or 

 peculiar to the Island). 



Names with an asterisk (*) prefixed are exotic species 

 which have become more or less naturalized, usually as 

 weeds in cultivated or waste land. Many are thoroughly 

 established and very common ; others merely casual and 

 rarely found. A dagger (f) prefixed to a name indicates a 

 suspicion of exotic origin or a doubt as to true nativity. 



Names enclosed in round brackets ( ) are exotic species 

 which, being largely cultivated for use or ornament, are often 

 fouud apparently wild, but are not really naturalized here. 



A query (?) prefixed to a name indicates doubt as to the 

 occurrence of the plant in Ceylon ; placed after a name it 

 means doubt as to the correctness of the determination. 



Names enclosed in square brackets [ ] are species which 

 have been recorded for Ceylon, but the occurrence of which 

 is a matter of grave doubt or requires verification. Most of 

 them are, in all probability, errors, but as they are given in 

 books of more or less authority, it is thought well to iuclude 

 them, thus clearly distinguished from the others. 



The additional names (synonyms) in italics are those of 

 Thwaites's " Enumeratio Plantarum Zeylanige" (1858-64) 

 when different from the ones here adopted. The numbers 

 following the names refer to the pages of the same book, to 

 which this Catalogue forms a complete classified index. 



In the case of a few species of which I have not seen 

 Ceylon specimens— and for the most part not included in 

 the " Enumeratio" — I have quoted the name of the collector 

 given by the author recording the species as Ceylonese, 



