Jan. 1891.] BOTANICAL SOCIETY OF EDINBURGH. 



49 



the 1st. Not a single plant came into flower on the Eock 

 Garden during December. The total number of species and 

 well-marked varieties which have flowered on the Eock 

 Garden during the year 1890 amounts to 1353, being 131 

 less than during 1888. The deficiency occurred during the 

 months of June and July. The largest number of plants 

 came into flower during May. Usually by far the greatest 

 proportion blooms in June. The number of species which 

 came into flower each month was as follows : — January, 37 ; 

 February, 25 ; March, 73 ; April, 150 ; May, 365 ; June, 

 346; July, 204; August, 81; September 47; October, 23; 

 November 2 ; December : — total, 1353. A record has 

 been kept, showing the date when each plant was first 

 observed in flower. 



Eeadings of exposed Thermometers at the Rock Garden of the 

 Royal Botanic Garden, Edinburgh, during December 1890. 



TRANS. BOT. SCO. VOT.. XVIII. 



[Table 



