29 



The 1879 list gave merely the names of all species at that time 

 known to have been found at Ottawa ; but gave no infoi-niation upon 

 some of the most important points the local botanist requires to know 

 about, such as the prevalence of any species in the locality, whether it 

 be indigenous or introduced, plentiful or scarce. 



Certain plants common in some localities are rare here, and vice 

 versa; again, plants indigenous to Canada, but not to the Ottawa 

 district, have been introduced either by accident or have escaped from 

 cultivation. All of those facts should be made known to students, or 

 they may fall into error. It was therefore thought well, this time, to 

 add short notes under each species, giving the general habitat special 

 localities and approximately the date in the year when collectors may 

 expect to find the different species in flower. 



With the exception of two or three species, all have been found by 

 the writer in the localities mentioned, and in every case the actual 

 specimens recorded have been carefully examined by him. 



A general habitat is given for each species, and in the case of 

 rarities, exact localities are mentioned. When no special locality is 

 given, it is intended to show that the species is of common occurrence. 



When no collector's name is given after a locality, or the initials 

 (J. r.) appear, the wi-iter is responsible for the i-ecord. When a plant 

 of interest is recorded from other localities than those M'here the 

 wi'iter has found it, the name of the collector is given in parentheses^ 

 In instances where a person's name is followed by an asterisk, ('") it is 

 to show that this was the first record of the plant having been discovered 

 in the Ottawa district. 



In indicating the time of the year when the plant may be looked 

 for in flower, the months have been divided into four quarteis, so that 

 when the name of a month is followed by the numbers 1, 2, 3 or 4, it 

 shows that the plant may be expected to flower in the 1st, 2nd, 3rd or 

 4th quarter of the month. 



Synonyms have been, for the most part, omitted, except in cases 

 where plants appear in the list under other names than those given in 

 Dr. Gray's " Manual." These, as well as introduced plants, (whether 

 into this district or into Canada) are printed in Italics. 



